5 stars: You should add dark theme otherwise amazing game.
3 stars: It was a great app but recently I've been experiencing problems where I can't check the puzzle for mistakes and the puzzle won't finish if I completed it. Another problem is I keep getting the same sudokus. If these problems are fixed this is a 5 star app.
4 stars: I'd remove the highlighting (it makes it easier to solve the sudoku) and maybe give a border to whatever the user selects (a number on the list, a square in the grid, an option for single/pencil/confirmed). Otherwise, excellent app for everyone who loves sudokus with a little twist, which makes them more enjoyable.
3 stars: I really enjoyed this app, but it will clear all your times on challenges when it updates. Very frustrating considering I had only a handful left. Would recommend manual update only if you're a completionist.
5 stars: This has a beautiful app ui. Well crafted for mobile devices.
3 stars: The automatic highlighting can not be turned off. This cheating makes the puzzles completely unenjoyable. Other than that, great app. Apps without setting can only be so ok.
5 stars: Please modify it so you can select as many squares as you want because it is a bit frustrating going 1 by 1. Other than this it is awsome
4 stars: Pleasant Experience, would like to see average with profile or score board with other users.
4 stars: Decent, good development
...