Hello.
I am very interested in your project.
I have checked your job description in detail and understand all what you want.
I am expert in this kind app development because I developed many apps including this kind app before for both of android and iOS.
Once you check my profile and job history, you will be sure that I am really suitable developer at this project.
I am also Top Mobile App developer certified by Google and Apple.
I think that here is nothing certified developer except me.
I think that it is the best for you to test me or ask me whatever question you have relation with this project development.
I will provide you with perfect answers for your every question.
Anyhow, Once you award me, I can start to work right now and will complete perfectly within short time.
That’s all
Thank you&Best regards
Yang,Song from China