The app doesn't work on my USA phone.  I keep getting an error code, "Error sending SMS please try again (500)".  I rated the app a 1 star on the Play Store.


Edited to add.  I finaly received the activation code aobut 1 and 1/2 hours later.  Entered the code and it's working.  No $5.00 worth of bitcoin.  Guess I am not one of the first 1,000 user.