Hi, there.
After carefully reading your job description, I am very impressed with your project and now have a full understanding of it.
I am extremely experienced in iOS and Android app development with 10 years and I am also very strong at server back-end programming, as well as synchronizing app and MySQL database by developing and integrating JSON-RESTful server API modules.
Please take a look at my freelancer profile.
https://www.freelancer.com/u/jinthreek89
I will do my best in order to realize your ideas into reality.
Please contact me, I hope to discuss this job more details.
Thanks and best regards.