3 major issues. Otherwise great game.
1. You can’t save your progress, even though sign in is an option. When you delete the game, all your designs, diamond, achievements/ challenges go away. Very frustrating after countless hours of collecting. I’ve now unlocked and lost every design twice, I recently uninstalled and lost my 3000 diamonds and my 300 high score, along with all the designs.
2. The game can get laggy, especially if you leave the app and come back. I have an iPhone 14 pro, and had this problem on my iPhone 12. Can’t play a game that is won with timing if the game lags. If you don’t leave the app, this probably won’t be an issue, though so not a huge deal.
3. It’s almost impossible to find a good design because they change colors and it gets too dark to see the corners. This will almost definitely cause you to fail. A few have outlined borders, which makes it easier.. but even these will get too dark sometimes (retro, art V). I will get 40 perfect in a row and then it turns black and I can’t even see the corner. It’s so frustrating and obvious that this should be an issue. I wish there were more than 2 or 3 that remain the same color each time (gold, platinum) because even these are hard to see.
I love this game and it’s a really good thing to do if you like to waste your life away on your phone, but I wish just a little bit more attention to detail was put in. Maybe some new designs, progress tracker, etc.