5 stars: Great game. Very addictive, just-one-more-time gameplay. Game was buggy after purchasing full game from demo. However, clearing data cache on the app solved problem. Very enjoyable game.
4 stars: I have a few complaints. First, the AI can make weird moves, like allowing a mass extincton of its species because it made too many to feed. Second, the app freezes a lot. I always found it slow when loading and when I close the game, but it never bothered me. Now it gets so slow that I have to close it frequently. It would be nice to have these things fixed. Otherwise, thank you NorthStar Games for a fun and scientific game.
4 stars: Have the board game and absolutely I love it. It would be nice if the virtual version had up to 4 players. Also the AI leaves a bit to be desired, I find it makes extremely questionable decisions even on hard like letting all its species die then over populating it's hand with deep cards and then has trouble building new species with this hand. Other than these minor problems a big 👍 that I can play this excellent game on my phone.
2 stars: Constant freezing towards the endgame. The App didn't use to struggle this much.
...