Decent app, company doesn't follow through on promises of free BTC when you do the things to get it. Customer service process is non-existent. See Coinbase response below - well, no response to my following their direction, and I've had a friend referral that the promised Bitcoin not credited. Edit - this app is also frighteningly unreliable. Repeated messages to check your internet connection, like it's supposed to be on my end when everything else connects just fine, and this app doesn't.