Similar with Android vs iOS. It's tough to be an indie developer on Android as the ecosystem is flooded with terrible apps and clones.
In fact, many developers just don't bother any more and build only for iOS. The users are generally willing to pay for quality apps, and that's sadly rarely the case with Android.
The app store is also pretty flooded with crap nowadays, maybe not as bad.
I would argue that iOS is easier to develop for if you're prepared to learn Apple's dev tools. The hardware available is locked down so you can more easily design for all cases, and there's a good bunch of core frameworks covering a lot of functionality
Having done both: iOS dev makes you smile (not always though.. Xcode, looking at you). Android development makes you want to scream. Currently busy with a Flutter app. Good compromise and it runs on both but definitely not as good as the ideal native experience.
In fact, many developers just don't bother any more and build only for iOS. The users are generally willing to pay for quality apps, and that's sadly rarely the case with Android.