Hi jdwispinski,
our slots are different from the other one because we use the central server.
The other apps are stand alone apps, this means that you will win or lose always the same amount, in this way they force you to buy coins in a fixed % long period.
So the percentage of those stand alone, are on you, not on the community.
Instead our slots are completely random based on all the players that play them, like in a real casino.
Another reason is if a user don't want to buy GGCoins or don't have money to spend, he wait 1 hour.
So a user waiting 1 hour and forced to get in the app, let us earn something from the iAD. Well is a low earn, but help us to pay the big server that manage about 2 millions users today.
We can say, that who buy GGCoins help us to continue to port famous slot under iOS/MAC.
That's all.
I want to add, that one day, in the future, if we receive much donations or good iAD traffic, we will lower to 30 min the bonus wait, and add more features.
In fact, in the new slot that are coming in those days, you will find the PROGRESSIVE JACKPOT.
More days pass, more features i would develop.