Would you be interested in a cryptocurrency with its own blockchain that can easily be mined on both android and iOS phones?
I think this is not impossible. Just a matter of time. The problem is the phone is missing a lot of components. There is power problem. And not enough computing power.
That's why its really just a waste of time I guess, this type of mining will just for temporary practice for those who are new and wanted to have free way of earnings but comparatively it's just a waste of time and it can harm your mobile phones just imagine how gpu and cpu works when they are mining crypto's,
I really can't see any profitability doing this, and are you willing to lose your device to earn only little amount of btc/dollars? well better to think wiser and
explore more instead of doing it.