I am providing ios app, Android app, Native app and website with design and backend And APIs
1) Write you functionality which you need in app 2) you need app in which platform
3) If you have any referral app which is help me understand you functionality or feature, you can send me.
4) if you can make rough sketch it will better for me get what you need...
Bug solving for exiting application.
The price may vary depending on how you want the app and also the resources you provide.
REMINDER:The price for a complete app is not 5$, we can discuss pricing depending on the functionality and complexity of the app you need.