one of my app (Onedollar) is live and needs some update.
Backend/API managed by us. Design/PSD/slicing provided. Only the app part needs to be updated. I split the project in 2 phases, if you are an experienced developer it's pretty easy:
Phase 1: Update the Android (native) with a small update
Phase 2: Rewrite the app using Ionic/cordova (No Xamarin or Phonegap)
Strictly no Indian agencies.
If any question let me know