Sudoku (PFA)
Privacy Friendly Sudoku Game
Game info
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Game description
Android App Analysis and Review: Sudoku (PFA), Developed by Karlsruher Institut für Technologie. Listed in Puzzle Category. Current Version Is 3.2.3, Updated On 19/04/2025 . According to users reviews on Google Play: Sudoku (PFA). Achieved Over 62 thousand Installs. Sudoku (PFA) Currently Has 538 Reviews, Average Rating 4.5 Stars
Privacy Friendly Sudoku is a logic puzzle game. The goal is to fill the complete board with numbers. Every number may only occur once in every column, row and subsection.Privacy Friendly Sudoku has three different game modes:
1. a 6x6 game field with 2x3 subsections
2. a 9x9 game field with 3x3 subsections
3. a 12x12 game field with 3x4 subsections
For each game mode there are four different difficulty levels, that are not measured by the number of set values but rather by the solving strategies needed to solve the game. The generator always tries to provide a game that has the minimum amount of set values, that are needed to solve the game.
Our Privacy Friendly App differs from other applications with respect to two aspects:
1. The Privacy Friendly Sudoku App does not use any permission.
2. The Privacy Friendly Sudoku App completely relinquishes advertisement.
Many other free apps in the Google Play Store dazzle annoying advertising and also shortens battery life.
You can reach us via
Twitter - @SECUSOResearch (https://twitter.com/secusoresearch)
Mastodon - @SECUSO_Research@bawü.social (https://xn--baw-joa.social/@SECUSO_Research/)
Job opening - https://secuso.aifb.kit.edu/english/Job_Offers_1557.php
We are currently offering version 3.2.3. This is our latest, most optimized version. It is suitable for many different devices. Free download directly apk from the Google Play Store or other versions we're hosting. Moreover, you can download without registration and no login required.
We have more than 2000+ available devices for Samsung, Xiaomi, Huawei, Oppo, Vivo, Motorola, LG, Google, OnePlus, Sony, Tablet ... with so many options, it’s easy for you to choose games or software that fit your device.
It can come in handy if there are any country restrictions or any restrictions from the side of your device on the Google App Store.
What's New
Disables level generation on the lower difficulties of the new 16x16 sudoku.
Adds indicator on how many levels are available.
Adds indicator on how many levels are available.
Recent Comments
tartas1995
I love this sudoku app! I am using their other apps too. Best apps in the store. There is only one feature that would be more expended. You can import sudoku with a link and I would love to be able to scan a sudoku on a piece of paper. Tbh i don't know how difficult it would be to get the OCR to work. Don't make the mistake to think this app isn't the best. But being able to scan would put it in the Olympus.
Paul
Updated. All fixed and better than ever. Definitely the best and most privacy focused Sudoku game available. Keep up the great work! Broken with the latest update. Previous versions worked flawlessly but now when selecting a "Hard" level the message "Generating new level in the background..." appears and the game doesn't start. It worked perfectly before the update and more it's broken.
A F
I like the clean interface and board. However, I would like there to be a feature that automatically inserts all possible numbers as notes when selected. It's particularly handy when I want just a quick game before bed.
Domino
While I'm sure there are better Sudoku apps out there with more belts and whistles, this one is no-nonsense, open-source, and one of the more polished of the "Privacy Friendly Apps" by SecUSo. I've accumulated over 100h of playtime with it, so it's proven itself more than reliable.
blargh glugh
Good app for sudoku. Ive tried a few and I like this one the best. It was recently having crashing problems and they fixed it pretty quickly, so the team is doing good too.
Arif Zaman
The best that I found. No ads, great clean user interface. I have one feature request that would make this even better. At a point where I am forced to guess, I would like to be able to do a marker. If later I come across am impossibility, I would like to be able to say "undo to last marker". With multiple markers, this would allow multiple levels of guess work.
A Google user
Love the fact that this app requires no permissions and would gladly even pay for it. Downside is on the two hardest settings, many times the puzzles are not solvable without guessing after getting so far. Even with adding notations, you essentially need to remember when you started guessing and then if you guessed wrong, hit undo until you started the guess and then change it. IMO, it takes the fun out of it.
Mikael M
The newest update to the graphics ruined the game. The gamefield is now only about half the screen so it's really easy to miss the intented square. Also the little numbers are so small they can hardly be seen. To add to the problem they changed the highlight color from yellow to dark orange so it's nearly impossible to see the little numbers when highlighted. Why on earth did you change it?