This app is identical in nearly every way to Cash Alarm, with the only notable differences I see being different games listed, no $0.50 PayPal cashout option and, unfortunately, the time between credits increases the longer you run the same game. I figured I'd try it out because I have three phones with split screen capabilities and a nearly unlimited number of Nox instances to mess around with across three PCs.
AppStation offers what appear to be more popular titles than Cash Alarm. The first featured game I was presented with was State of Survival. After that, I was of course offered a host of other MMO base-building RTS games just like it. I personally hate these games, but then, I don't actually have to play them to get the rewards, so I'll try AppStation for a week or so and see how it performs against other, similar paid-to-play apps.
You can download AppStation here (referral link) if you want to try it out with me. This and other listings will likely end up on Proven Passive's Apps/Games page by the end of the day. Once again, I would suggest running an AppStation game, like Cash Alarm, while you are sleeping (or any other situation where your phone will be on a charger and not in use).