I love this app. I use it most when I’m anxious. It occupies my brain enough that I don’t ruminate on negative thoughts. Its like a silent meditation that calms me down. It’s satisfying to finish a puzzle. I paid to remove the ads, but I somewhat frequently choose to watch an ad to get an extra vial. This happens especially when frustration is ramping me up and I need to get to the “awesome” screen without re-doing the whole puzzle. I love that I can start over to try a different approach without penalty. I love that there’s no competition to get to a higher level or beat someone else’s score. I would love to see a toggle for colorblind use. I’m not colorblind but my eyes are getting older so when I have the game open on the dimmest light setting on my phone I can’t tell the difference between the colors. Just turn up the light? Well, I often turn to this game in bed when my brain won’t shut off but I don’t want to wake my partner. It might also be interesting to see my playing habits in a graph that shows my heart rate. I don’t know if other people react to this game like I do, though.

I absolutely love this game. I love that it’s just straight forward. There’s no daily login, no other game modes. You just do the puzzle and move onto the next. Simple and fun. However, recently I’ve had a few glitches. The first being my undo button. When you want to backtrack to undo a move you get five free undos before you have to watch an ad. It’s a little annoying because I paid the $2.99 to have ads removed, but it’s not mandatory to use the undo button, so I’m not necessarily complaining about that. My problem is sometimes it glitches and even after watching the ad it doesn’t reset your undo button. It gets stuck in a loop and you could watch three or four ads with no reward. Secondly, sometimes one of the colors will not have all four blocks it needs to complete the puzzle. It’s happened to me twice now where I’ll complete the puzzle and I’ll only have two dark blue blocks, so I can’t complete the puzzle and have to completely start over. I’m currently on level 299, and the puzzles this far in are much more challenging. It’s so disheartening to get a hard puzzle finished only to have to restart it because the colors are missing from their bottles and you’re stuck.

I do agree this game is fun and relaxing and it is very easy to just play kind of passively/while not giving it your full attention. I do have a couple complaints though. The first is that there are a lot of ads and some of them are too long. I get the need for ads and I don’t really have a problem with them here or there, but these occur pretty often. What’s more annoying is that some of them are ridiculously long — I’m talking 45 seconds to a minute. These don’t occur often but it happens enough and is pretty annoying when they do. The bigger problem I have with the game though is that it absolutely destroys my battery. This might just be because I’m using an older iPhone (iPhone 8), but I was playing the game for about 5-10 minutes with no other apps open and my phone went from 94% to 76%. Even with a phone that is somewhat old that is ridiculous, and it has pretty much made me get to the point where I can only play the game when I have a charger nearby. Again, this is not to say I don’t like the game itself because it is really fun and easy to play for extended periods of time, but these setbacks do make it difficult to play when I want to.