Having played Canasta for over 25 years, and now teaching my daughter to play it, I was thrilled when she found it on the app store, and gladly paid $3.49 for the full version. That being said, there is a major rule flaw which needs to be corrected. When you pick up the deck to meld, you need to meld the cards in your hand first, with the top card on the deck being the only card from the deck which is used, before the deck is incorporated into your hand. If that flaw gets upgraded in a future update, I will revise my rating to 4-star.
I’m also not sure going out “concealed” is covered as it should be (200 points vs 100 points for simply going out).
Allowing other combinations other than a 4-handed game, including the ability to play online vs a real person, would truly make this a 5-star game.