Dear Client.
I have deep knowledge in top iOS,Android services such as In app purchase, Payment integration, Camera ,Graphics Drawing, Animation, Geo location, Push Notification ,Database control, etc.
A lot of my apps are running on AppStore and PlayStore.
I can also build mobile website with flexible services.
I have enough experience in Facebook SDK, Twitter SDK, Firebase, Quickblox,C2Call, Parse, Twillio, etc.
Nice and Familiar interface will greatly make you happy and I hope long term partnership with you.
Best Regards