Hello Amit,
I have gone through the App & seen the attached file too which you have given and understood your requirements.
We are rich experienced and highly skilled Mobile developer team member and have expertise in Android, Ios and dealing with web designing too.
We have already worked on User registration/ Login, API integration, Fetching data from server, Push notification, Notification/ Alert message, Upload images/ Videos/ Audio, Share via social media (Face book), Payment integration and so on.
I am confident enough that our technical team can do this and can develop the Mobile application on both the platforms which is compatible on all the versions of Android/ Ios, Tablets and Ipads as well.
References are available if asked.
Please let me know if you have any questions and I will be glad to work with you.
Waiting for your positive response.
Thanks
Nidhi