> it's different than saying "Also on Android" because this is a totally different device. I.e. saying it's on another smartphone doesn't add value to the descr

> it's different than saying "Also on Android" because this is a totally different device. I.e. saying it's on another smartphone doesn't add value to the description I disagree even with that. If an app runs on other platforms, that means you can use it yourself on other devices you may have lying around, or recommend it to others, which allows you to collaborate in using it socially (actual social features or just discussing how to use it, and so on). Few household and friend groups will be entirely on one platform or another. It also gives you the option of moving to that platform in future. That is useful to many customers. It's obvious that the reason those kind of notices are prevented is to stifle competition.