Game is smooth, playing single player hard mode, but: 1. A glitch: In virtually every game (100 pts), there is at least one round that makes no sense: I knock with x, and on the laydown the computer has all of its cards matching without laying off anything (yielding an undercut). In other words, the computer appears to have been sitting with a perfect gin hand for at least one round and it did not knock (declare gin). There is no possible strategy that would do that. 2. Other but no space left

Advertiment Heavy with No Option for Pay to Disable. Otherwise gameplay was mostly great. Hard difficulty has the AI suspiciously completing their hand in three or less turns at a much higher rate than seems statistically probable. At the end of the day... I would give the gameplay a 4* rating, and would keep playing were it not for the large number of ads. As it stands, however, I had to uninstall.

Edit: it tries to sneakily install other apps through ads. The devs need to find a new ad service. I uninstalled because if this. It's shady, because those apps are getting charged for a download when I immediately removed. 3 stars. It's enjoyable. If you select hard difficulty, that just means the AI will get all the cards they need to knock in two hands. I'd expect hard difficulty to mean the AI strategy is better, but it's essentially just a cheat. That being said, it's still enjoyable.