My name is Alex and I'm the lead designer at ThemeJunky, an app development company that specializes in Android and iOS design. We're interested in covering the design aspect of your application(UI+UX).
Here's our offer:
My colleagues and I will initially create a few versions of your app, and with your feedback, we will be able to determine what you're looking for more precisely. We're confident that we can deliver any design faster than 20 days. We also provide prototyping services! This means we can create a fully functioning prototype based on our design and respecting the wireframe, you can see how the app will work before any coding is done! This usually lowers development costs and increases speed. Another thing we can provide that will increase the app development speed is Zeplin integration. We can export every screen we design in a format that provides developers with everything they need to create the app(measurements, fonts, colors, resources, etc) so the back and forth with the developer is kept at a minimum.
A short recap of what we offer:
1 - A team of designers that will provide multiple versions of your app
2 - Your design delivered in 20 days
3 - App prototyping
4 - Zeplin integration
Thank you for your time and have a nice day!
Alex, ThemeJunky.