If you download this, you'll spend more time watching ads than you'll spend actually playing the game. An ad will play after every level you complete, sometimes every other level if you're lucky. It'll let you skip the ad after a few seconds, but i'll just take you to another screen for the same ad. Twice. So that's three different screens for one ad. And this isn't including the ads you can choose to watch for extra content like coins or keys. It just plays immediately after finishing a level. It even plays ads if you turn on airplane mode. ??? how
It's disappointing that the developers decided to overdo it with the ads. This is easily the nicest water sort game on ColorWaterSortPuzzle3D store. It has the best features, the pouring animation doesn't take years. Would easily be a 5 star game if it had less ads. Sadly, they ruin the experience of the game. Not worth playing, cannot recommend. And based on other reviews, paying to remove ads is a waste of money anyway because they still play regardless.