As a sole developer who recently released my first mobile app, I can't comment on your specific use case or generalize about the market as a whole, since I don'

As a sole developer who recently released my first mobile app, I can't comment on your specific use case or generalize about the market as a whole, since I don't have significant experience. That said, I chose to use React Native and release to both iOS and Android. After three months without doing any serious spending on marketing, my iOS version had an order of magnitude higher installs than my Android version. I suspect this may derive from differences between Apple and Google's search ranking algorithms. It's a moot point for me, since React Native supports both platforms, but the single data point may help you.