Don’t blame the devs. If you’re an iOS dev you’re just an iOS dev, period. It’s the most important platform and it’s very quirky. It is not a simple matter to republish on Android, especially when it means doubling the complexity of the code you manage to increase your user base by 20%, which is realistic in many cases. App developers just see an enormous amount more engagement from iOS. Yes there are a lot of Android phones but many of them are dirt cheap and may never even see a single app install because it’s just a phone to its owner.