Euclidea

★★★★★ The game provides great exercise for the brain and refreshes your knowledge of Euclidean geometry and geometrical constructions learning more in the process of solving the problems. You can even use it as a simple sandbox to play with your own geometrical constructions.

★★★★★ This game makes me feel like a regard and a genius at the same time.

★★★★★ Well-designed and intriguing game. The puzzles are arranged, so you always feel you are learning something and rarely frustrated.

★★☆☆☆ Meh. It was fun for an hour and a half until I completed all the basic puzzles. I couldn't move on because new levels were locked behind completing a number of previous levels using variant methods, only issue is you don't know which levels have a variant solution and which are a waste of time.

★★☆☆☆ The game is good but making dark mode DLC is criminal and dumb. Modern UI design principles include dark mode as standard, and apparently this developer needs special additional compensation to flip a white background to black. Mobile gaming is a competitive market, and you are directly hurting yourself as a developer when you do stuff like this. Just rethink this strategy and add dark mode as standard next update. I actually bought this game and didn't know that dark mode still wasn't included.

★★☆☆☆ Obviously an inverse pyramid scheme TO TRY TO GET YOU TO PAY. Not on a level plane. Some have so many solutions you can never get all Variants, and according to their website it is only one variant, but the description says All. Especially circular can have left and right-handed solutions. Then include perpendicular vs. or mixed with straight edge, and you have exponential solutions.