If an Android program¹ is available elsewhere DRM free, open source, FOSS, etc., go for that instead, even before confirming the presence of this new DRM / social engineering tool in the given program. And if the program itself is not available, look for alternatives. And to make researches a little easier, some APK resources from the top of my head besides F-Droid and Github are Humble Bundle, Itchio, Patreon and potentially any Github alternative.
¹ “app” should never have replaced the name already adopted for no good reason
Agreed with Magician and RmDebArc, and besides that, it could also be for the challenge, for the enjoyment, or because the vision of the dev only works in such a platform. And with emulators that allow commercial use around, the developer can also publish his games to modern platforms without having to rebuild the whole game.