Sudoku Klassik: Zahlenrätsel

This is easily the best Sudoku app!The creators have an amazing flow of advancing to help you learn, even if you’re a pro. This is the best classic sudoku on the App Store.

Like another reviewer mentioned, I was a long time Enjoy Sudoku user and needed a replacement after it stopped being available. This app is pretty much perfect. Dual number pads, highlighting for easier pattern recognition, cross platform sync (!) and buy once to play on every platform (!!!). Only small complaint is I wish there was a way to draw filled in rectangles when highlighting candidates but the normal cell highlighting does mostly what I need anyways. I like that you can buy the unbundled or bundled games and they have the same interface and engine. If you're picky like me and find 99% of sudoku apps to be trash then try this one.

Love this version of Sudoku. I have been able to set it up the way I like and have tried different settings outside of my comfort zone that have actually helped me explore new ways to play. The hints are very helpful to learn more complex moves. Love the ability to select multiple boxes, undo AND redo, etc. Overall, my favorite sudoku app that I found through MANY different options.

I had a Sudoku app (Sudoku+ released in 2008), for more than 15 years, playing over 2000 games. I upgraded my phone in May 2025. When I upgraded my phone, I found my app had been discontinued. I tried unsuccessful to get it back. I started a search for a new app. I tried 23 different apps. None of them are even close to having all the features in my app. Until I found, Logic Wiz Classic Sudoku. This app had more features and tools than my previous app that was discontinued. Except for one that I liked. When a digit was selected, it was highlighted. As soon as you select coloring mode, the digit was no longer highlighted. I sent a note to the developers. Approximately two weeks later, THE FEATURE WAS ADDED. This app has all the features as my previous, plus a few more.

I have played many different Sudoku games. This is the best and it’s worth the price.