When looking at how much money you can make (ROI) from different platforms like iOS, Android, and cross-platform tools like React Native and Flutter, there are a few things to think about:

1. User Base:

   • iOS users spend a lot of money, but there are fewer of them worldwide.
   • Android has a huge number of users, especially in growing markets.

2. Development Costs:

   • Making apps for iOS and Android separately can be more expensive because you have to write different codes for each one.
   • Using cross-platform tools means you can write one code that works for both, saving money.

3. Time to Market:

   • Cross-platform options can help you launch your app faster, so you can take advantage of popular trends.

In simple terms, if you're aiming for wealthier users, iOS may give you a better return on your investment. But if you want to reach more people and save money, think about using Android or cross-platform tools!