Hybrid Mobile App conversion to AngularJS and Ionic Framework (iOS & Android)

General information for the business: App Development
Kind of development: Customization of existing program
Description of requirements/functionality: I would like to adopt something like the ionic framework to improve the app user interface and user experience.

The current app is a sports app focusing on football available on both iOS and Android

Technical Information about the current app:
The iOS app is written in native Objective C and the android app is written in Java
Both apps use a web view so that when the app opens it's showing html5 pages based on php and javascript
The php code is vanilla (no framework) for performance

You must been very experienced in:
- PHP
- HTML5 / CSS
- Javascript
- AngularJS
- Ionic Framework
- Push Notifications

And also have an understanding of Football Betting (Soccer).

I am open to advice and you will need to collaborate with the current developer.
Extra notes: