I played with thunder almost always.. even on my noob tank I have thunder m2... I think I am gonna be first who says that there is a difference.betweeb m2-m3. well for first m3 is realy faster than m2 and that damage incrase -5 means a lot when u hit hornet twice with m2 it has like 8-10 hp left and because of that u waste time on 3rd shot and leta confess.that reloading time is not realy fast... but with m3 u kill him, and even shoot faster... :)

app for android is already under development.. not sure about iOS.