In this very narrow case, the grass on the Android side is much greener: You can install your own APKs on an Android device without paying anyone at all, withou

In this very narrow case, the grass on the Android side is much greener: You can install your own APKs on an Android device without paying anyone at all, without having to upload anything anywhere, and without requiring any particular device to build the APK in the first place. You don't even need to touch the bootloader or root it; you just toggle a setting to allow the installation and it works.