If you do not mind, I will post here a link to the pool, which I use myself.
http://god.mibpool.com . The project is really interesting. Most importantly, mining does not load the processor. If look more deeply, then in fact it is an imitation of mining. Therefore, for a smartphone, you can not worry too much.
Hi! MIB Miner actually uses the processor to compute real hash algorithm. The smart algorithm which is suited for mobile device enables Smartphones to mine cryptocurrency.