Hi,
Hope you doing well sir , I go through your message in given detail, I make sure you that i am working as professional web app developer . I can work with you to develop your web app as well superior for you, and as per your concern sir i will show you my experience through my work,
If you provide me opportunity to work on this project, I will devote my full dedication to get you well better result and finalize this project for you .
Thanks Ashish