It requires only SMS verification even 2 factor auth is activated means if you are no longer able to receive SMS you are no longer able to cash out and 10 $ offered has date to expiry.Currently the payment rate of Stormgain is more or less about $ 12 per month if you have the multiplier at 0.5 that is to say in its base form, it takes you some time to reach the threshold of $ 10 but if you want some free money to trade, that's fine.