Android / iOS mobile app

Need a mobile application for Android and iOS. Ideally, it should be written using React Native / Firebase technology, but I am open to suggestions.

Features he needs in the app:

- login via email, Google and Apple

- several subscription plans

- notifications

- user statistics / ranking (points are collected for completed screens)

- several screens with content, where, for example, when we have screens A B C D then to see, for example, C we have to go through the previous screen (B) and complete it. If we exit the application then we will return to the last completed screen.

- Ads in the free plan as UI elements, as well as pop-ups

- Assistance in exposing the application in Google Play and App Store

Please let me know the technologies you can use (if it's a different technology than the one I provided), the deadline, and a quote.