I've got an iPhone 5c and thought that if I was able to tap into the cpu or gpu then that could get some nice hashrates. Anybody know how to do it? I would preffer to either mine BTC or dogecoins... I don't care about how efficient it is I just want to put it to work!
There might be browser miners, I haven't looked into mining on iOS.
You don't have the cooling to keep that thing running at 100% all the time and it will probable ruin your nice new phone.
I know they can build them into apps:
http://www.iphonehacks.com/2013/11/plugin-allows-developers-mine-bitcoins-play-games.html