Sudoku Classic: Number Puzzles

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 lost my long-term sodoku app (Enjoy Sodoku - the one with the Thinker icon) with my recent iPhone update. It took me several days of searching and trying to find this worthy successor. Thank you Logic Wiz! The app has a nicely designed and intuitive user interface with many customization settings, including autopencil, which I use when working tougher grids so I don’t have to grind through that step. The Expert level puzzles require basic “next level” solving methods such as unique rectangles. I’ve not tried the Master level, so I don’t know how complex they can get yet. A true 5/5 app that I was very happy to pay for.

Really nice if you’re trying to uplevel your sudoku skills. I was used to paper sudokus and the NYT ones, and this has the ability to do two different kinds of notes + color coding and drawing on the board, so it’s really helpful for more complex sudoku or for learning new techniques. The dark mode is also really nice. If you’re trying to learn, the hints and strategies can also be helpful. I like that they have a glossary of strategies with drawings, but sometimes the explanations are confusing. Still, this has helped me become a lot better at sudoku. The ads on the free version are *really* *really* over the top and annoying, though. Like, borderline unusable. They’re doing the “frustrate you so much you either spend the money or hate the app” strategy, not the “ad revenue makes this worth giving you a decent experience” strategy. So if you’re looking for a free app, this is not the one.