I have an app develped with Ionic
backend + api is develped with PHP Laravel
the app is for android/iOS and have 3 issues
1. can't post long content posts
2. notifications dosen't work on iOS but it works on Android
3. iOS app need to change package name and upload to app store
Note: you need an iphone, maybe mac to test the app
it's based on Amazon AWS you need knowledge about this...