Regarding Trefoil--I enjoy the challenge of this game, but a 92% loss rate is too much. The app needs to deal a greater percentage of winnable deals. I give up.
Australian Patience also has an unreasonably high loss rate. It is set up so that it almost too easily wins from time to time, and then it is just loss after loss. I like the game, I just wish I could win more.
Other games take some practice before getting a higher number of wins. Thats a good challenge and allows for strategy-building. FreeCell is like that.
So, bottom line is that the games need to be winnable a reasonable percentage of the time & more random & realistic.
Some of the games (Milligans Harp, Rainbow, Black and Red, Batsford, etc.), seem rigged, in that the numbers/cards dealt are obviously not random, because they appear in groups, like 8s, 5s, 4s, jacks, and no 9s, 2s or 3s until much later in game (for random example). It is clearly not random in the way a real deck would be and it needs to be made so. I know actual shuffled game cards can group up RANDOMLY, but not every or most games--the frequency is random, too.
I am rather frustrated at this point.