Been playing this game awhile, level 3555. I have loved it until the recent updates dropped the coins you could earn in a streak from 120 to 20. You used to be able to watch an ad for 30 coins when you completed the daily puzzle or a level but they took that away. The puzzles have gotten noticeably more difficult to where it is clearly designed to get you to have to purchase coins. Even if I were to consider that you get so few coins for what you spend. Likely uninstalling when out of coins.