Meh not interesting in that, i use my phone like always and everyday if i use it to mine some cryptocurrency my phone would be lag and maybe can be damage by that. And in the other hand mining through mobile phone not really profitable, when they make it doesnt mean you should use it.
Electroneum has not real mining, they don't use your mobile device power, they just test your device and give them rating by hash rate, and you receive tokens when it's just connecting to the network. Just because you connected you receive tokens. So thats not mining as we know it.