Sven's SudokuPad 4+

Sven Neumann

Designed for iPad

    • #60 in Casual
    • 3.8 • 43 Ratings
    • $2.99



Sven's SudokuPad finally lets you play your own Sudoku puzzles in the same app as used by Cracking the Cryptic in their videos. Created by Sven, the same developer who has created and improved the Cracking the Cryptic Sudoku webapp over the past year.

It also includes a few brand new classic Sudokus created by Simon and Mark exclusively for Sven's SudokuPad.

What’s New


Various bug fixes and improvements
Option to paste link inside app

Ratings and Reviews

3.8 out of 5
43 Ratings

43 Ratings

My.Humble.Opinion ,

Almost everything you could want

**Strengths: This is easily the best way to solve a Sudoku puzzle whether it is one from CtC or one from another source. I had been hoping for something like it since I first used the CtC web app for the videos. Very easy to use and makes me want to solve more puzzles again after putting them down a few months ago.

**Areas for improvement: It would be very helpful if it had the ability to use the phone camera to autodetect a puzzle that is on paper instead of having to manually enter each number in a custom puzzle. It would also help if the timer automatically paused if switching to another app or turning off the phone.

stepwisecliche ,

Fantastic App

It gets 5 stars for being the only app of its kind on iOS to allow solving puzzles from all over the internet. Previously, I had a huge bookmark folder of puzzles I had to wait until I was on a desktop to solve, but now I can solve them on my phone, and that is a beautiful thing.

Some suggestions: The process of cleaning up pencilmarks can be rather tedious, so auto-pencilmark elimination in row/column when placing digits would be a very nice feature to have as something that could be enabled in settings.

Also, while long pressing on a cell highlight similar cells, it would be nice to be able to do this highlighting from the number pad with a long press. For example, if I wanted to highlight all cells with corner marked 5s, I could go to corner marks and hold the 5 button to do so. Currently, I have to have a corner marked 5 with no other corner marks to highlight just the 5s.

Some sort of cloud syncing would also be nice so people could continue playing puzzles on different devices. Those features missing aside, this is still the best iOS app for solving sudokus and has earned all 5 of these stars until that stops being true.

Edit: also auto-pausing the clock when switching apps would be good. There is some glitchy behavior with the clock in general, but I am not personally reliant on it.

rmdkvoeknsjdd ,

A Few Requests

I love CTC and I love the dual pencil notation idea of Sven’s solver. However, there are a few quirks I think could be improved. Double-tapping an empty cell deselects everything else, but the taps have to be spaced precisely for this to work. There is a little empty space in the bottom left corner of the screen, maybe tapping there could unselect everything.

I would LOVE a way to select all pencil marks of a certain candidate. The other CTC apps do this and it’s very convenient.

Double-tapping a filled cell highlights all cells of that number. This is helpful, but it would be great if selecting a digit in the number pad did this. Maybe each “version” of the number pad (number, corner marks, and center marks) could highlight all candidates of that type.

This app is SO CLOSE to being the perfect solver, especially with the ability to enter puzzles. I agree with the other reviewer that an auto-detector would be amazing, but not necessary for a perfect app. The suggestions above (especially the ability to highlight all of a particular candidate) would make it a perfect solver.

Thanks Sven!

App Privacy

The developer, Sven Neumann, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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