Android is the most popular mobile operating system globally. It is a modernized version of the Linux open-source operating system, which provides millions of users with compute resources and features to create user-friendly mobile applications. An Android developer can specialize in creating and designing the underlying code for building interactive mobile applications for the Android platform with user friendly features such as easy navigation and rich user interface.

Here's some projects that our expert Android Developer made real:

  • Quick integration of payment gateways onto multiple platforms.
  • Identifying and fixing software bugs in existing Flutter projects.
  • Utilizing SMS API to provide a secure login experience with OTP authentication.
  • Developed a multi restaurant food delivery system with powerful UI/UX capabilities that contain an extensive list of features.
  • Added new functions onto existing android applications.
  • Developed a tablet app specifically designed to provide train replacement service manual announcement applications.
  • Wrote code for thermostat remote control on ESP32 WiFi and Blynk cloud platform.

It is evident that Android developers have a wide array of talents at their disposal that can be used to create innovative solutions and applications for any of your desired needs. On Freelancer.com, we have experienced Android Developers with years of expertise ready to assist you in your project. Our talented developers are passionate about what they do—making sure that all customers get their desired product quality and standards met on time without compromising the overall application structure and design. If you are looking for an Android Developer for your project, why not post your project today on Freelancer?

354,401レビューから、クライアントは Android Developers 4.9/5個の星で評価します。
Android Developers を採用する

Android is the most popular mobile operating system globally. It is a modernized version of the Linux open-source operating system, which provides millions of users with compute resources and features to create user-friendly mobile applications. An Android developer can specialize in creating and designing the underlying code for building interactive mobile applications for the Android platform with user friendly features such as easy navigation and rich user interface.

Here's some projects that our expert Android Developer made real:

  • Quick integration of payment gateways onto multiple platforms.
  • Identifying and fixing software bugs in existing Flutter projects.
  • Utilizing SMS API to provide a secure login experience with OTP authentication.
  • Developed a multi restaurant food delivery system with powerful UI/UX capabilities that contain an extensive list of features.
  • Added new functions onto existing android applications.
  • Developed a tablet app specifically designed to provide train replacement service manual announcement applications.
  • Wrote code for thermostat remote control on ESP32 WiFi and Blynk cloud platform.

It is evident that Android developers have a wide array of talents at their disposal that can be used to create innovative solutions and applications for any of your desired needs. On Freelancer.com, we have experienced Android Developers with years of expertise ready to assist you in your project. Our talented developers are passionate about what they do—making sure that all customers get their desired product quality and standards met on time without compromising the overall application structure and design. If you are looking for an Android Developer for your project, why not post your project today on Freelancer?

354,401レビューから、クライアントは Android Developers 4.9/5個の星で評価します。
Android Developers を採用する

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    353 見つかった仕事

    My wife and I can’t make it to our son’s next college baseball game, so I need someone physically at the field who can open the streaming app I’ll provide, log in with my credentials, and keep a steady live feed from first pitch to the final out. All you need is a modern smartphone (or small camera that feeds a phone), a sturdy tripod or mount, and a reliable data or Wi-Fi connection. Once you arrive, simply launch the app ten minutes before game time, start the broadcast, and angle the shot from behind home plate so the entire field is visible. Please keep the stream running through post-game handshakes; the platform will archive the replay automatically. I will confirm you have ended the session correctly and that the replay is available. Deliverables: • Cont...

    $30 - $250
    $30 - $250
    0 入札

    The project is to build a pair of native-quality apps—one for iOS and one for Android—that bring a general-purpose classified marketplace to mobile users. Listings will span everything from furniture and gadgets to cars and property, so the information architecture and search experience must stay flexible rather than locked into a single vertical. Core functionality I expect from day one includes: • Secure user profiles with in-app messaging so buyers and sellers can negotiate without leaving the platform • Fast, multi-field search and filter tools that let users narrow results by location, category, price range, date posted, and other common facets • Integrated checkout that supports direct payments inside the app, allowing optional fees or featured-listin...

    $670 Average bid
    $670 平均入札額
    85 入札

    Saya berencana meluncurkan sebuah aplikasi produktivitas khusus Android yang fokus pada fitur pengingat dan notifikasi. Tujuannya sederhana: membantu pengguna menjadwalkan serta mengingat tugas-tugas penting tanpa kerepotan. Lingkup pekerjaan: • Merancang dan mengembangkan aplikasi Android native (Java atau Kotlin). • Membuat modul pengingat yang memungkinkan pengguna menetapkan jadwal harian, mingguan, atau kustom. • Mengimplementasikan notifikasi lokal yang dapat diulang, ditunda (snooze), dan dihapus dengan mudah. • Antarmuka bersih dan intuitif agar pengguna baru langsung paham alur penambahan maupun pengelolaan tugas. • Dokumentasi singkat tentang cara build, struktur kode, dan petunjuk rilis di Google Play. Kriteria keberhasilan: – Apl...

    $15 Average bid
    $15 平均入札額
    2 入札

    Saya berencana meluncurkan sebuah aplikasi produktivitas khusus Android yang fokus pada fitur pengingat dan notifikasi. Tujuannya sederhana: membantu pengguna menjadwalkan serta mengingat tugas-tugas penting tanpa kerepotan. Lingkup pekerjaan: • Merancang dan mengembangkan aplikasi Android native (Java atau Kotlin). • Membuat modul pengingat yang memungkinkan pengguna menetapkan jadwal harian, mingguan, atau kustom. • Mengimplementasikan notifikasi lokal yang dapat diulang, ditunda (snooze), dan dihapus dengan mudah. • Antarmuka bersih dan intuitif agar pengguna baru langsung paham alur penambahan maupun pengelolaan tugas. • Dokumentasi singkat tentang cara build, struktur kode, dan petunjuk rilis di Google Play. Kriteria keberhasilan: – Apl...

    $20 Average bid
    $20 平均入札額
    1 入札

    Saya ingin kumpulan panduan praktis untuk beberapa video game populer di platform mobile (Android dan/atau iOS). Fokusnya pada cara bermain, mekanik dasar, strategi menengah, serta tip singkat agar pemain baru cepat menguasai permainan. Ruang lingkup: • Pilih beberapa judul game mobile yang sedang tren—utamakan genre berbeda agar panduannya variatif. • Untuk tiap game, tulis langkah‐langkah awal (instalasi, pembuatan akun, kontrol dasar), penjelasan fitur utama, dan strategi efektif untuk level menengah. • Sertakan tabel ringkas berisi istilah penting dalam game beserta arti atau fungsinya. • Tambahkan screenshot ilustratif atau skema kontrol jika tersedia; pastikan bebas hak cipta. • Semua tulisan harus berbahasa Indonesia yang jelas dan mudah dipah...

    $395 Average bid
    $395 平均入札額
    6 入札

    Saya ingin sebuah aplikasi media sosial khusus Android yang dibangun dari nol hingga siap rilis di Google Play. Fokusnya adalah pengalaman pengguna yang lancar, antarmuka modern, dan arsitektur backend yang mudah diskalakan. Fungsi inti yang saya butuhkan: • Pendaftaran & login (email, Google, atau Facebook) • Beranda/feeds real-time tempat pengguna dapat mem‐post teks, foto, atau video pendek • Fitur suka, komentar, dan follow/unfollow akun lain • Laman profil dengan foto, bio, dan daftar posting • Pencarian akun & tagar • Notifikasi push untuk interaksi penting • Panel admin web sederhana untuk moderasi konten dan pengguna Teknologi yang disarankan—namun terbuka jika Anda punya opsi lebih baik—antara lain Kotlin + Andro...

    $333 Average bid
    $333 平均入札額
    3 入札
    Next-Gen EV Charger Management
    6 日 left
    認証済み

    I’m rolling out a new generation of eco-friendly EV charging stations and need a full-featured management platform built from scratch. Here’s what the first release must do for me: • Energy usage monitoring for every session and charger • Remote control—start, stop, reboot and schedule charging • Secure user authentication Role-based access is essential. Administrators configure the network and view global analytics, end-users simply authenticate and charge, while maintenance staff receive real-time diagnostics and alerts. The platform must also talk seamlessly to our existing energy-management system through open, well-documented APIs so we can optimise load and incorporate on-site renewables. REST/JSON is preferred, but I’m open to proven alterna...

    $7193 Average bid
    $7193 平均入札額
    75 入札

    I’m building a fully native mobile application that lets drivers book automotive services The core flow is simple: users create an account (email, phone, or social login),check real-time availability, reserve a time, then pay securely without ever leaving the app. Both iOS and Android need to feel identical in look and speed, so I’m expecting Swift/SwiftUI on the Apple side and Kotlin with Jetpack on Android, backed by a single REST or GraphQL API. South African gateway must handle payments, supporting saved cards and one-touch checkout via Credit Card (VISA) or selected electronic transfers as well as PayPal etc. Please show me past work that demonstrates: • native builds (no hybrid wrappers) • secure login implementation • a live payment gateway...

    $7 / hr Average bid
    $7 / hr 平均入札額
    27 入札
    Love now love
    6 日 left

    App Name: Love Now App Type: Android (APK) – Interactive Couple Games Description: Love Now is an interactive app designed for couples and partners to enhance intimacy, emotional connection, and fun together. The app works on a single device, allowing both partners to play and interact directly on the same phone. App Goals: Improve communication between partners Create a playful and engaging atmosphere Provide daily games and challenges Track relationship progress with a fun “Relationship Level” Main Features: Account Setup User information: name, age, gender Partner information: name, age, gender, preferences Relationship status and duration Games Section Includes interactive games: Word Game: Each partner has a list of words; the app uses a built-in algorithm to match c...

    $220 Average bid
    $220 平均入札額
    38 入札

    I have just opened public access to my new “Lifepilotos” co-op network app and the very first objective is simple: flood the platform with verified, engaged users. All functionality is already live on both iOS and Android; what I’m missing is the growth engine that converts visitors into members and keeps them active beyond the free-trial period. Here are the key facts you should know before proposing your approach: • Core goal: maximise new user registrations during this launch window. • Offer: 30-day free subscription via the invite link (). • Extra incentive: the first 25 qualified sign-ups become co-founder level members, registered through q9qclub& or directly on the app. • Audience: I’m casting a wide net—students, profess...

    $461 Average bid
    $461 平均入札額
    39 入札

    I need a secure, lightweight VPN application built for both and Android. The interface can stay minimal; stability, speed, and protocol flexibility are the real priorities. Core capabilities I expect: • Kill switch that reliably blocks traffic if the tunnel drops • Split tunneling so the user can choose which apps bypass the VPN • Support for the following protocols or transport layers: ssh, ssl, udp, v2ray, and websocket • A menu of multiple server locations that I can expand later through simple JSON or similar remote config No in-app user-authentication flow is required; the build should assume pre-provisioned profiles or embedded credentials. Deliverables: 1. Clean, well-commented source code (/Kotlin or Java/) 2. Signed release builds ready for TestFli...

    $212 Average bid
    $212 平均入札額
    35 入札
    Steam Sweepstakes Web App
    6 日 left
    認証済み

    I need a mobile-responsive web app that lets visitors sign in through the Steam API, automatically pulling their SteamID so they can enter free sweepstakes with a single click. The core build should feel snappy on phones first, then scale gracefully to desktop. Key flow • User arrives, taps “Sign in with Steam,” and is authenticated via OpenID. • Once logged in, the site tracks each entry they make, stores it under their account, and presents a simple profile page that shows only their sweepstakes history. Sweepstakes engine An automated job must close each giveaway at the scheduled time, randomly select a winner from valid entries, and fire off both an on-site and email (or Steam message if feasible) notification. I also want an admin view where I can start...

    $765 Average bid
    $765 平均入札額
    191 入札

    I have a continuous stream of device-verification QR codes that need to be scanned strictly online for a mobile-app workflow. For every code you scan successfully, I release $0.50—simple, fast, and volume-driven. Here’s how it works: I send you batches of QR images or links. You scan each one with your smartphone (any modern Android or iOS device is fine), wait for the “verified” confirmation in the app, and capture a quick screenshot as proof. Send the batch of screenshots back to me, I check that every code shows the correct confirmation, and I pay out immediately. Deliverables per batch • Screenshot proof for every assigned QR • A quick status note if any code fails to register Consistency and speed matter more than special tools; as long as the ...

    $2 / hr Average bid
    $2 / hr 平均入札額
    23 入札

    I'm in need of a developer who can create a comprehensive music distribution script and website, similar to Distrokid or CD Baby. The system should have a robust front end and back end, and the ability to connect and interact with various music streaming platforms. Key Features: - Connection to Major Music Streaming Platforms: The script should be able to seamlessly connect with Spotify, Apple Music, and Google Play Music, as well as Deezer, Tidal, Amazon Music, and any other music streaming platforms that are relevant in the industry. - Advanced API Integration: An essential component would be API connectivity to these platforms, enabling detailed analytics and data gathering per artist, release, and track. Specifically, I need the system to provide analytics on: - Number of Stream...

    $106 Average bid
    $106 平均入札額
    11 入札

    I'm looking for an experienced developer to build a text-based social networking app with the following core features: - User Profiles - Messaging System - News Feed - Reels and Videos Authentication will be via email login. Ideal Skills and Experience: - Proven experience in developing social networking apps - Strong knowledge of building secure and scalable messaging systems - Expertise in implementing user profiles and news feeds - Familiarity with video content integration and display (reels and videos) - Proficient in email authentication methods Please provide a portfolio with relevant projects. Looking forward to your proposals!

    $22 / hr Average bid
    $22 / hr 平均入札額
    139 入札

    أعمل على لعبة كرة قدم أركيد جديدة بعنوان "الإسماعيلي بطل" موجهة لأجهزة Android (5.0 فما فوق) وبحجم لا يتجاوز ‎100 MB. الفكرة بسيطة ومباشرة: يتحكم اللاعب في نجم الإسماعيلي داخل ملعب الإسماعيلية، يسجل الأهداف، تزداد سرعته، ويتخطى العقبات والأعداء مع تقدّم المستوى. لدينا ثلاث درجات صعوبة، وأهداف زمنية واضحة (على سبيل المثال: إحراز 5 أهداف في 30 ثانية). التركيز الأكبر في هذا التنفيذ سيكون على تصميم الشخصيات؛ أرغب في نماذج ثلاثية الأبعاد واقعية للاعبي الإسماعيلي الحاليين مع إمكانية تخصيصها للمستخدم (تغيير المظهر، الأطقم، وربما الاحتفالات بعد التسجيل). أحتاج أن تبدو الوجوه مألوفة لجمهور النادي، لكن في الوقت نفسه يجب أن تعمل بسلاسة داخل بيئة أركيد خفيفة. إلى جانب الشخصيات، يلزم ضبط فيزياء الكرة والحركة، بناء نظام ترقية المهارات، وإضافة موسيقى حماسية تعكس أجواء استاد الإسماعيلية من...

    $18 Average bid
    $18 平均入札額
    5 入札

    Our coaching sessions at Waziram and Vism Institute are streamed in the official mobile app on both iOS and Android. These recordings are crucial for my coursework, yet the current build offers no way to save them for later study when an internet connection is unavailable. I need an experienced mobile developer who can add a secure offline-viewing feature. The downloads must remain tied to each student’s login so that only authenticated users can view the files; once a user signs out, access to the stored videos should be revoked automatically. Because I am not sure what level of server or code access the institute can grant, the solution may involve: • Modifying the existing iOS (Swift/Objective-C) and Android (Kotlin/Java) apps to incorporate encrypted, device-bound st...

    $67 Average bid
    $67 平均入札額
    11 入札
    Offline Field Sales App
    6 日 left
    認証済み

    I need a native Android application that lets my field marketing executives capture every customer inquiry, flag a lead as converted, update the sale’s current status, and instantly see how they are performing throughout the day—even when the signal drops out. The whole experience must feel light, launch quickly on modest devices, and never stall in a poor-network area. All records should be written to local storage first and then pushed to our server automatically through periodic background sync. If the phone is offline the user can keep working uninterrupted; once coverage returns the queued data syncs silently in the background. A compact on-device dashboard will summarise each executive’s day: total inquiries, conversions, sales status changes, and any other KPIs w...

    $102 Average bid
    $102 平均入札額
    20 入札

    I am looking for an app for organic products including vegetables, fruits etc. YOu may contact me on nine-five-nine-eight-three-seven-two-triple seven I'm looking for an experienced mobile app developer to create a billing app that operates on both iOS and Android platforms. Key Requirements: - The app should be user-friendly and efficient for managing bills. - Experience in mobile app development is essential. - Please include relevant experience in your application. Ideal Skills and Experience: - Proficiency in developing apps for both iOS and Android. - Strong UI/UX design skills. - Experience with secure payment processing integration. - Ability to provide ongoing support and updates post-launch. Please provide a portfolio showcasing similar projects.

    $120 Average bid
    $120 平均入札額
    28 入札

    I need an experienced Java developer to help with a mobile application. The project is urgent and needs to be completed ASAP. Ideal Skills and Experience: - Proficiency in Java, specifically for mobile applications - Experience with mobile app development frameworks and tools - Ability to work under tight deadlines - Strong problem-solving skills - Previous work in mobile application development is a must Please include relevant past work in your application.

    $3980 Average bid
    $3980 平均入札額
    20 入札

    I have just opened public access to my new “Lifepilotos” co-op network app and the very first objective is simple: flood the platform with verified, engaged users. All functionality is already live on both iOS and Android; what I’m missing is the growth engine that converts visitors into members and keeps them active beyond the free-trial period. Here are the key facts you should know before proposing your approach: • Core goal: maximise new user registrations during this launch window. • Offer: 30-day free subscription via the invite link (). • Extra incentive: the first 25 qualified sign-ups become co-founder level members, registered through q9qclub& or directly on the app. • Audience: I’m casting a wide net—students, profess...

    $523 Average bid
    $523 平均入札額
    75 入札

    I’m building an end-to-end marketplace that connects car-salvage yards with buyers looking for specific parts. The project covers two products working in tandem: 1. A cross-platform mobile app targeting both iOS and Android. Within the app users must be able to: • search the entire catalog of salvaged parts by keyword, make, model, year, and VIN • post new parts for sale from the yard side, including photos, descriptions, condition, price, and inventory count • chat in real time so buyers and yards can negotiate or confirm fitment before checkout 2. A responsive web dashboard for yard owners and internal staff. The dashboard needs robust: • inventory management (batch uploads, stock alerts, status changes) • user management (role-based access, suspension/ap...

    $7014 Average bid
    $7014 平均入札額
    160 入札

    I’m building an end-to-end marketplace that connects car-salvage yards with buyers looking for specific parts. The project covers two products working in tandem: 1. A cross-platform mobile app targeting both iOS and Android. Within the app users must be able to: • search the entire catalog of salvaged parts by keyword, make, model, year, and VIN • post new parts for sale from the yard side, including photos, descriptions, condition, price, and inventory count • chat in real time so buyers and yards can negotiate or confirm fitment before checkout 2. A responsive web dashboard for yard owners and internal staff. The dashboard needs robust: • inventory management (batch uploads, stock alerts, status changes) • user management (role-...

    $591 Average bid
    $591 平均入札額
    236 入札

    I’m building a lightweight MVP that lets independent cafés run a fully automatic, card-linked loyalty programme without issuing separate cards or apps. The core of the job is a secure backend service that: • Listens to Square and SumUp webhooks / APIs, fingerprints the payment card (never the full PAN) and recognises returning customers. • Increments a visit counter and, when a customer hits the reward threshold, instantly triggers the reward logic. • Fires an SMS through Plivo to let the guest know they’ve just earned, for example, a free coffee. What I’ll look for in the finished work 1. Clean, well-documented code (language and framework are up to you as long as it’s reliable and easy to maintain). 2. Clear setup instructions a c...

    $710 Average bid
    $710 平均入札額
    149 入札

    ATTENTION: I am looking for a high-performing Individual Lead Developer. No agencies. No task-completers. If you are unreliable, unpunctual, or expect to be micromanaged, do not apply. I need a technical partner who takes ownership and is hungry to build a world-class product. The Project A sophisticated, closed-community platform for professional networking and high-performance collaboration (Stealth Mode). The Figma designs are 100% complete and high-fidelity. I need a "premium" implementation: fluid animations, micro-interactions, and flawless native performance for iOS and Android. The Goal: A fully functional, polished V1.0 ready for App Store and Google Play Store submission. Core Scope for V1.0 Launch: 1. Security & Access: Robust Whitelist System (Domain-based &am...

    $931 Average bid
    $931 平均入札額
    135 入札

    Matrimonial Community App – Smart, Secure & Fully Automated Flow User Journey: Users visit the official website → download Android/iOS app → OTP login → fill biodata (personal, family, contact, etc.) → upload 2–4 photos (auto watermark + unique Biodata ID generated) → complete payment (UPI/Card/Netbanking). Only paid profiles go to Admin review. Approved profiles are auto-added to assigned private groups; rejected profiles are auto-refunded (Razorpay, ~24 hrs) with notification. Inside the App & Groups: Members can view biodata + photos (zoom enabled), shortlist profiles, and contact Admin via chat/call. Screenshots and downloads are disabled for privacy. Profiles are visible only within assigned groups. Smart system rotates unique biodata mon...

    $376 Average bid
    $376 平均入札額
    35 入札

    I am building a utility-style Android application and need an experienced Kotlin developer to take it from concept to a stable, Play-ready release. The core of the job involves: • Designing clean, maintainable Kotlin code that follows Android best practices (MVVM, Jetpack components, coroutines). • Implementing a small feature set typical of tools apps—think background services, permission handling, and a concise, responsive UI built with XML or Jetpack Compose. • Integrating basic analytics and in-app settings so the user can customise the experience. • Connecting the app to a lightweight local data store (Room or DataStore) for persistence. • Packaging, signing, and preparing a release build that passes Google Play requirements. I will provide...

    $138 Average bid
    $138 平均入札額
    18 入札

    I already have a working React Native codebase; what it lacks is my company’s look-and-feel and a proper release. Your task starts with swapping in our logos and applying the exact colour codes from my brand guidelines across the entire UI—backgrounds, buttons, and text alike. Once the styling is in place I need the updated project pushed to my private Git repository with tidy commit messages, after which you’ll build a signed Android release and take it all the way to the Apple Playstore and Google Play Store under my developer account. Deliverables • All logo assets replaced (launcher icon, splash, in-app images) • Theme files updated so colours match the supplied hex codes; no stray defaults left behind • Project builds cleanly for both Android an...

    $149 Average bid
    $149 平均入札額
    109 入札

    Project Description: I am looking for a professional and experienced app developer who can develop my Android app and successfully testing and publish it on Google Play Store by strictly following all Google Play Console policies, terms, and conditions. This will be my first app on Google Play Store, so policy compliance, clean code, and proper guidance are extremely important. Scope of Work: Develop a fully functional Android app Ensure 100% compliance with Google Play policies, including: User Data & Privacy Policy Permissions policy Data Safety form Ads policy (if ads are used) Content & UI guidelines Create and deliver: Signed AAB (Android App Bundle) Unique package name App icon & splash screen (basic) Assist with or handle: Google Play Console setup App...

    $46 Average bid
    $46 平均入札額
    11 入札
    OpenRemote App Remake
    6 日 left
    認証済み

    I’m using the open-source OpenRemote mobile app and want to present it as a fully branded experience for my users on both Android and iPhone. The core functionality is already there; your task is to make it look and feel like ours. Key objectives • Dynamically Replace all OpenRemote visuals with our logo and preferred colour scheme (no layout changes needed). • Ensure the app can be built and deployed for any sub-domain of our cloud instance (e.g., , ). • On first login, the app must pull the correct realm so users immediately see their own colours and logo, not a generic fallback. • Produce final, signed builds (APK + IPA/TestFlight) and document the exact steps so we can repeat the process for future brand updates. • We need the app to go on Google...

    $151 Average bid
    $151 平均入札額
    83 入札
    LinkedIn baloncesto iOS/Android
    6 日 left
    認証済み

    Quiero lanzar una app móvil que funcione como un “LinkedIn del baloncesto”, disponible tanto en iOS como en Android. La plataforma se organizará por perfiles de Árbitros, Jugadores y Clubes, pero también deberá permitir futuras altas de entidades, creadores de contenido y representantes. Estructura principal • Menú inferior con cinco pestañas: Principal, Chat, Búsqueda, Livelions (nuestra marca) y Perfil. • Apartado Principal: – “Instahistorias” en la parte superior. – Feed de contenido que cuelgue la comunidad. – Bloque adicional de Noticias de baloncesto. • Chat: solo necesito Mensajes directos entre usuarios en esta primera versión. • Bús...

    $292 Average bid
    $292 平均入札額
    30 入札

    I want a lean, dependable Android app that helps me log day-to-day sales without any bells and whistles. The flow is fixed at four material-designed screens: 1. Company creation 2. Product creation 3. Sales / POS entry 4. Report & Export Everything may live in a local SQLite (or similarly lightweight) database so figures stay put between sessions. Jetpack libraries are welcome if they speed things up. Deliverables I expect • Complete Android Studio project with tidy, well-commented code • Signed APK that installs on Android 9+ • Short README describing how to build, where the data sits, and how to trigger the CSV/email export If the compiled APK mirrors the four-step flow above, stores data reliably, and can push out a CSV or email attachment of all rec...

    $136 Average bid
    $136 平均入札額
    61 入札

    I’m relaunching both my legal-services website and its companion mobile app so they truly serve advocates and their clients. The existing build is functional but dated, so the engagement revolves around three pillars: fresh design, feature expansion, and speed. Design overhaul • New visual language that aligns with a modern legal brand—clean typography, reassuring colour scheme, and consistent iconography across web and iOS/Android. • User-centric interface: simplified page hierarchy, intuitive navigation rails, and clear calls to action that guide advocates to case tools and clients to service requests. Feature set to implement • Secure client portal where advocates can share case updates, invoices, and progress notes. • Robust document management...

    $307 Average bid
    $307 平均入札額
    37 入札

    When my Android app is minimized, any YouTube video inside the WebView pauses immediately. I need a clean, reliable way to keep playback running in the background the same way the regular Here’s the current state of things: • I’m loading the video inside an Android WebView. • I have already experimented with various WebView settings—JavaScript, media playback flags, setMediaPlaybackRequiresUserGesture =false, etc.—but nothing has stopped the pause on “home” or “recent-apps” actions. • No alternative implementations (custom players, exo-player wrappers, or different WebView engines) are in place, What I need from you: 1. A working code solution (Java or Kotlin) that lets the video continue playing when the user switch...

    $79 Average bid
    $79 平均入札額
    15 入札

    I’m building an Android-only application and need a clean, secure login flow that relies on one-time passwords sent strictly by SMS. Users will enter their phone number, receive the code, and gain access after successful verification—no usernames or emails involved. You’ll be responsible for wiring up the full authentication cycle, choosing a reliable SMS gateway, and writing the Android code (Kotlin or Java—your call) that: • accepts the phone number, • triggers the SMS OTP dispatch, • validates the returned code with sensible expiry and limited retries, • handles resend logic, and • stores / refreshes session tokens once the user is verified. Deliverables must include the documented source code, any backend or cloud function n...

    $86 Average bid
    $86 平均入札額
    43 入札

    Tenho, de forma parcial, uma base de dados digital com falhas comuns em máquinas agrícolas e preciso transformá-la no núcleo de uma solução inteligente. Quero que esse núcleo identifique rapidamente o problema informado pelo operador e devolva instruções claras, de preferência também pelo WhatsApp. O que preciso que você entregue: • Módulo de IA capaz de analisar sintomas, cruzar com a minha base parcial e sugerir o diagnóstico mais provável. • Aplicativo móvel (Android / iOS) e plataforma web que compartilhem o mesmo back-end, permitindo ao operador consultar o sistema onde estiver. • Integração nativa com WhatsApp para que o usuário receba...

    $192 Average bid
    $192 平均入札額
    29 入札
    Figma E-commerce App UI
    6 日 left
    認証済み

    I need a polished, conversion-focused mobile shopping interface designed in Figma for both iOS and Android. The project covers every customer touchpoint—from onboarding screens through product discovery, cart, checkout, and a simple account area—so I can hand the final file straight to my developers. You’ll take my existing brand colours, typography and a rough feature list and translate them into a clean, modern design system, complete with component libraries and variant states that respect each platform’s guidelines while still feeling cohesive across devices. I value practical experience over lengthy proposals, so please highlight similar app work you’ve already shipped and note any specific strengths with Figma’s auto-layout, interactive components...

    $104 Average bid
    $104 平均入札額
    62 入札

    Je dispose déjà d’une plateforme SaaS en PHP / MySQL ; l’objectif est maintenant de lui adjoindre une application mobile native Android et iOS entièrement en français. L’app devra communiquer avec mon back-end via API (REST / JSON) afin de récupérer et mettre à jour les données existantes. Fonctionnalités clés • Notifications push configurables depuis le SaaS • Mode hors ligne avec synchronisation automatique dès qu’une connexion est retrouvée • Prise de photo directe depuis l’application puis annotation libre (dessin, surlignage) avant envoi L’expérience utilisateur doit rester fluide et réactive, c’est mon critère num&ea...

    $674 Average bid
    $674 平均入札額
    104 入札
    App Fintech Escalable Argentina
    6 日 left
    認証済み

    Busco formar un equipo multidisciplinario de élite para lanzar una fintech capaz de competir cara a cara con Mercado Pago y Naranja X en el mercado argentino. La solución debe nacer escalable, segura y 100 % alineada a la normativa del BCRA y de la UIF. Alcance inicial (MVP de alto nivel): • Módulos transaccionales: transferencia inmediata de dinero (CVU-alias), pagos con QR y pago de servicios básicos. • Recargas: carga de celular, recarga de SUBE y futuros verticales similares. • Wallet digital: administración de saldo, historial en tiempo real, alertas push y gestión de tarjetas. • Cumplimiento legal: políticas KYC/KYB, prevención de lavado, términos y condiciones y contrato de usuario. • Ba...

    $28992 Average bid
    $28992 平均入札額
    95 入札

    I'm seeking an experienced React Native developer to build the frontend for my iOS and Android app. Detailed designs for all screens will be provided. Key Requirements: - Develop multiple screens as per provided designs - Integrate backend APIs written in Java Ideal Skills and Experience: - Strong proficiency in React Native - Experience with API integration, specifically Java-based - Familiarity with mobile app development for both iOS and Android - Attention to detail and ability to follow design specifications I need someone residing in Mumbai

    $294 Average bid
    $294 平均入札額
    61 入札

    We are looking for an experienced development agency to continue the development of our vehicle tracking application. Our previous developer has left the company, and we are now seeking a reliable and highly experienced team to take over the project. Project Overview The application is built with Vue.js (frontend) and Laravel (backend). The system uses Traccar as the backend engine for GPS position processing. The existing codebase is already developed and functional. Initial Scope of Work Set up the current source code in a proper development environment. Review and understand the existing architecture. Implement a series of small modifications and improvements. Ensure stability and continuity of the system. Requirements Strong and proven experience with Laravel and Vue.js. S...

    $741 Average bid
    $741 平均入札額
    348 入札

    Business Name: Score Predictor Concept: Mobile app where users predict football match scores, earn points, and win small cash prizes. Goal: Build MVP prototype with Premier League matches for testing, then expand to Championship, European competitions, and special jackpot games. Business Model: Users pay a small entry fee per round, £1 per round. Users can predict as many rounds as they wish; winners receive cash prizes. Revenue comes from entry fees and potential in-app advertising or sponsorship later. Backend: Connect to a football data API for live scores & league tables; scalable for future expansion.

    $3061 Average bid
    $3061 平均入札額
    231 入札

    I’m ready to turn a solid concept into a polished Android application focused squarely on business and productivity for my customers. The end goal is a Play-Store–ready build that lets users handle three core jobs in one place: • Task management – create, assign, track, and get notified in real time • Invoicing & payments – generate invoices, accept card / wallet payments securely, and surface simple analytics • Lightweight CRM – store customer profiles, log interactions, and view a history that ties back to tasks and invoices A clean, modern UI is key because my audience is external customers, not internal staff. They need to open the app and immediately understand what to do next without training. Here’s how I picture the fl...

    $98 Average bid
    $98 平均入札額
    24 入札

    I need two high-quality, platform-ready AR filters—one for Snapchat Lens Studio and one for TikTok Effect House—built around a single concept that drives user engagement through an interactive mini-game and precise facial-tracking effects. Time is of the essence, so I’m looking for someone who can move quickly from ideation to submission-ready files without sacrificing polish. Here’s what I expect to receive: • Final .lso and .effect files prepared for direct upload to Snapchat and TikTok, respectively • All supporting assets (textures, 3D objects, audio) in organized folders • A short screen-capture demo showing the filter in action on both platforms • Basic usage notes, including any platform-specific approval tips you’ve learned ...

    $383 Average bid
    $383 平均入札額
    6 入札

    I need a mobile app that can create and print two identical copies of every bill—one for the customer and one for the driver—using a TVS thermal printer. Each bill will carry our company logo and a system-generated, unique barcode. When that barcode is scanned with any standard phone camera or scanner, the duplicate copy of the bill must open immediately on the user’s device. The workflow is simple: fewer than twelve fields are filled in for each transaction, the app saves the data, produces the two printouts, and stores a cloud-accessible version linked to the barcode. A straightforward username-and-password login keeps everything secure. Key points the finished solution must cover: • Seamless Bluetooth or USB communication with the TVS thermal printer (other bran...

    $199 Average bid
    $199 平均入札額
    15 入札

    I run a driving school and now want to give students an easier way to book lessons, follow their progress, and access study material right from their phones. The job is to design and build a complete mobile app that works smoothly on both iOS and Android. Core scope • Design a clean, student-friendly UI that matches my school’s branding. • Build all primary screens: new-student signup, lesson scheduling, instructor calendar, progress log, in-app messages/notifications, and a simple theory-test study area. • Set up a lightweight admin panel (web-based or integrated) so instructors can edit schedules and mark lesson outcomes. • Implement secure sign-in (email, phone, or social login) and basic payment gateway hooks for future online payments. • Deliv...

    $780 Average bid
    $780 平均入札額
    162 入札

    I’m rolling out a product that runs simultaneously on the web, iOS and Android, and I need a clean, unified way to handle user entry and keep everyone informed in real time. Authentication scope • Support OAuth flows (Google, Apple, etc.) • Maintain JWT-based sessions for our own username/password route • Offer social-media sign-ins side-by-side, all funnelling into a single user table Notification scope • Email messages for transactional events • Push alerts on the mobile apps • SMS for time-sensitive updates Deliverables 1. Reusable modules or SDK integrations for each platform 2. Secure backend endpoints (or rules) that issue and verify tokens 3. Trigger logic that selects the correct channel—email, push or SMS—based o...

    $15 Average bid
    $15 平均入札額
    14 入札

    I run a small sand-delivery startup in Bihar—Shyam Baba—that currently operates 10 trucks and serves 15 regular customers. I need a lightweight, cross-platform mobile solution that keeps ordering and dispatch simple even when the network drops. Scope of work You will create three tightly-integrated interfaces from a single Flutter or React Native code-base so I can publish on both iOS and Android with minimal extra effort. • Customer App – Order placement, live rate viewing and a quick look-up of past orders. • Transporter (Driver) App – Instant order receipt plus delivery confirmation by scanning a QR code at the customer site. – A basic delivery history screen for the drivers’ reference. – UI must stay clean and r...

    $199 Average bid
    $199 平均入札額
    59 入札

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