Would you be interested in a cryptocurrency with its own blockchain that can easily be mined on both android and iOS phones?
It is not possible to mine any crypto through mobile right now because of high mining difficulty of almost all coin and if there will be some new coin out there in future, than it will be not worth to mine because mining difficulty for it can increase insanely high in no time.
Some cloud mining platform are developing mobile apps for their service but that can't be referred as mobile mining.
Mining need a high class GPU that can mine, but i think if you mine in phone the phone was easy to heat then you need an high standard phone.
Mobile phones can be as artificial thing for miner but it is so difficult if it can be at longer.