Fishdom 4+

This puzzle matching game is super fun and challenging. Currently, I almost to level 3000 so there's lots of content to make your way through. It does get really challenging and exponentially more difficult which is kind of the point of a puzzle.
The upside of this particular game to most other games is the lack of ads. There aren't any! I love that! There are options to pay money for boosters and help but even those are super descrete and are well hidden if you choose not to. I've never paid any money for this game and continue to find it entertaining and graphically beautiful.
As a programmer myself, I get really annoyed with people who complain about ads and in-app purchases because a real person creates and maintains these games and they should be compensated in some way. There are extremes, when the ads and in-app purchases are overwhelming but this game is so far from that. This developer does a great job at making a beautiful, fun game that you can choose to play for free or pay a few bucks for boosters.

I've been playing this game a lot for the past week. As with any game, the levels slowly trend upward from super easy to difficult. It is fun, however, at a certain level (around 60ish 70) after they've psychologically reeled you in, the algorithm makes it literally become impossible to pass the level. As another reviewer stated, they Iet you get so close to winning without actually letting you to make your frustrations buy your way out. I'm currently on level 79 for the past few days and only given a few lives to work with each round. If I lose them im kicked out for 30 or more miniutes. The game itself is easy but requires certain "boosts" to pass the level which are given to users that pay. I understand the app service doesnt have ads and the graphics are high quality, but making levels so difficult to pass without purchasing so it just turns the user away. It comes off greedy. I have played games before where they give the option to pay to advance forward or patiently wait longer to advance but to pay to just continue playing is ridiculous. It was fun while it laster but I will be deleting this app since it's no longer suitable anymore.

This is the best match game I’ve played in that beating the levels takes attention to detail, and the variety of challenges in good. Building out each aquarium is fun. I’ve found that every level (so far past 2300) is beatable without buying extras, but some take a few hours to win without help. Caving in and buying some diamonds or tools is of course always an option and I’ve paid quite a bit in cash. Unlike some of the other reviewers though, I don’t really begrudge paying for such good software - those people deserve to be compensated for their work, don’t they? I’m quite sure most of us don’t work for $zero.

Would be good if the Support team actually responded to customers though. Great game.