Loved this app/game (5 stars) until I got to level 505 and found out it's impossible to solve without buying an extra tube. The extra tube option has always been for when people are struggling to solve the puzzle, not a necessary part of the puzzle. Now when I hit a challenge, I won't be sure if it's simply a hard level or unfairly unsolvable. Adding a tube feels giving up which isn't fun anymore.
I like the game a lot. My unpleasant experience is having to watch 2 30-second ads each time I want an extra bottle or need more "undo" the play. NOW, they are making those awful ads 2 times longer and even throw in extra ads. The Temu ads are obnoxious. I wouldn't buy anything from them. They're throwing in other companies now, too. The ads spoil the pleasure. It actually makes me dislike the advertising companies.
After trying and seeing all the different spheres, backgrounds, tubes and collecting $484,377 What else is there? I am at level 5519. When does the game change? I tried to skip ahead and pay to unlock higher levels. It doesn't work like that. All that money sitting in a game that can't be used. Useless! Bored. Not challenging. Level up! Wasting my time.
Of all the "Tower of Hanoi"- based games (ball sort, water sort), this one has the most reasonable advertising. You don't have to watch an ad between every puzzle, only randomly every couple, or after 5 mistakes, or to get an extra beaker. As far as the puzzles themselves, I did find that the difficulty ramp might be marginally steeper than I would like, but I am at puzzle 75. If you are looking for a good sorting game, this is the one you are looking for.
This is so much better then the similar app that has more installs. This one is more simple, not as many adds, and it can keep up with my moves. In the other more popular app, it would be slow to respond to my moves, there were so many adds, and also a lot of annoying, strange rounds with mystery balls. This app is so much better the the other ones.

Melissa Patton (Shaigirl)
Purchased the "disable ads" for $2.99 on 3/23/21. Had to factory reset my Note9. When I re-downloaded this game, was quite surprised to see ads at the bottom! No restore purchase option so contacted the developer who was sadly no help. Just told me it should "sync" if I'm using the same account... which I am! It's a shame as I really enjoyed the game. But paying to disable the ads only to end up with ads again is infuriating. And for that reason I can not recommend this game!
Like many other reviewers, I previously paid for the premium ad-free version, but can't use it after switching to a new phone because the app data doesn't transfer over. It starts back at level 1 and doesn't even show the premium option in the menu. I've even tried manually copying the app files over via PC to no avail. I genuinely like this game, I just wish I could actually continue playing it after switching phones.
*ad mill warning* At first the game is a lot of fun but as I progressed I noticed more and more puzzles that are impossible to complete without watching a commercial to get an extra tube. If you stubbornly try to complete them, you just grind more ads for them. Finishing levels also results in ads. I understand ads is how they make their money, but there's a limit to what is reasonable. Players are being used to grind as rev for them.
At first it was great, minimal ads and engaging levels. However, after a few hundred levels, the ads increase to an obnoxious degree, combined with the levels being unbeatable without watching at least one ad, often two. And with almost all ads being 30 seconds long, it feels like I'm spending more time watching ads than playing. Plus, the coins you win are basically useless.
This is a pretty fun, if barebones, game. Levels seem to be functionally endless, ive never had it crash on me, and the animations are nice. The ads on the other hand.... They got to be so intrusive and annoying that i ended up caving and removing ads, which i guess was the point. At least it was only a couple bucka instead of a subscription model.
Update: should have kept my mouth shut. They've just started with the ads between levels. They should give you the option to purchase. This is a well made app. It runs smoothly and quickly. It doesn't crash or lag. I also love the feature to move multiple balls at once, and that you watch ads to unlock things, instead of incessantly during game play. I'm just over 100 levels and I will definitely keep playing. Thanks devs!!
This game is fun and interesting in concept. Sometimes the puzzles can be quite challenging! For some reason, Level 82 in particular seemed to be the hardest of all the ones I played (up to 112). Luckily you can watch ads to unlock extra containers to make sorting the balls easier. All this game is lacking is a little more detail and style, as it's rather minimalistic at the moment.
I've deleted the app. I really don't mind the ads. For the most part they're unobtrusive and infrequent. But the reward sounds/music is too loud and seemingly can't be muted. Then up pops an ad for Yousician, which overrides my system settings and blasts out at full volume! There is a mute button hidden away, but by the time you find it and get it to work, the damage is done and you're booted from the library. Not Cool!
Fun to play. I like being able to play with numbers instead of colored balls. Sometimes the shade of blue and green look too similar. I gave only 4 stars because of one issue. I think the game needs a Hint tab. One free per game, then purchase using your game tokens. After trying for 8 or 10 times, it would be nice to start the game knowing you were on the right track.
I'm sad that this puzzle chooses to move other balls when I only want to move 1 ball. I like to challenge myself to win in as few moves as possible & there are many times when all of a color being moved to the same place is not the best strategy & that, to win, I will be FORCED to move some of those balls more than once. Tjis was not an issue before & I'm trying to know why the game auto-moving balls I've not chosen to move leaves no choice. I switched it off. But, it's not off. Please, fix😊.
Love it! Some levels are super easy and then some are Very challenging! I've had to replay several levels just to be able to figure out the right move. I'm not one that likes to easily watch an ad just so I can get an extra bin to win a level. However, I have had to do it only twice because no matter how many times I replayed the same level, i just could not find a way to win. Very very good game! Simply designed but very challenging!
I really like this game but the ads ruin it. I realize free apps must have some ads but there are way too many in this game. As you get to higher levels the ads get longer & longer. I can deal with short ones; even 30 second ones are annoying but ok yet 60+ second ads are just too much! I barely use the app any longer because of this & wouldn't recommend it now.
Nice, chill, relaxing game. No constant pressure to buy anything. When I first installed it I blew a whole day playing it. I don't find the ads overly annoying (unlike Candy Crush which has become an ad-watching "game"). My only suggestion for improvement is this: some levels are too hard to solve, but you can watch an ad and get an extra tube -- at which point they become too *easy* to solve. I'd like the ability to spend coins or watch an ad in order to move one ball to a non-matching ball.
This game will take your mind off of everything else. Pretty handy if you have to pass the time and wait somewhere. Improve skills without even realizing it, like planning ahead, and remembering what the plan was. Im 60 yrs old and even my grandkids love to pull it up and play a level. I like the colored balls option. As far as difficulty, there's always a way around if you're just too stuck. Thanks for the cool game people...
Good game over all. However, once you make any sort of real progress, the difficulty just goes up exponentially, ruining the enjoyability of the game, and forcing you to watch ads to add extra tubes or skip levels because there's just about no other way. Past level 70 or so, the game is just a total cash grab, and you might as well uninstall it at that point.