I've seen many developers who released the same app on both iOS and Android and realized that Apple platforms still provide them with 80% of revenue for 20% of users.
Not that many people on Android are willing to pay $60 for an app.
Developing for Android is also a much worse developer experience than developing for iOS, because there are thousands of devices to support, and much greater stratification of operating system customizations and older versions.
Developing for Android is also a much worse developer experience than developing for iOS, because there are thousands of devices to support, and much greater stratification of operating system customizations and older versions.
https://dontkillmyapp.com/ is just one example of the kind of problems app developers face on Android