Sudoku (PFA)

Name: Sudoku (PFA)
Rating: 4.5066667 (539 reviews)
Author: Karlsruher Institut für Technologie

By: Karlsruher Institut für Technologie

Privacy Friendly Sudoku Game

This app was removed from Google Play Store on 2025-06-06

Features & Capabilities

Privacy Friendly Sudoku is a logic puzzle game designed for enthusiasts who value privacy and quality gameplay. It offers three distinct game modes: 6x6, 9x9, and 12x12 grids, each with uniquely sized subsections. With four difficulty levels per mode, puzzles challenge players through varying solving strategies rather than mere placement count. The game ensures minimal preset numbers necessary for solution, guaranteeing a fair and thought-provoking experience.

What sets Privacy Friendly Sudoku apart is its commitment to user privacy and a clean interface. This extension requires no permissions and abstains from any advertisements, unlike many free apps that compromise user experience with intrusive ads and battery consumption. Engage with Sudoku peacefully while respecting your privacy. Connect with the developers via Twitter or Mastodon, or explore job opportunities through their website.

User Growth & Download Statistics

Game Games Privacy & Security Entertainment

By:

Karlsruher Institut für Technologie

Downloads:

62,526

Rating:

4.51

(539)

Version:

3.2.3 Last updated: 2025-04-19

Version code:

Creation date:

2016-03-29

Permissions:

android.permission.FOREGROUND_SERVICE_SPECIAL_USE Moderate risk
android.permission.FOREGROUND_SERVICE Low risk
android.permission.WAKE_LOCK Low risk
org.secuso.privacyfriendlysudoku.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Size:

4.93MB

Email:

co*****@secuso.org

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2025-06-06

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Karlsruher Institut für Technologie

Google Play Store

https://play.google.com/store/apps/details?id=org.secuso.privacyfriendlysudoku

Email:

co*****@secuso.org

Website:

https://secuso.aifb.kit.edu/Sudoku.php

User Reviews

Users generally love this Sudoku app for being ad-free, privacy-friendly, and having a clean, minimal interface with multiple difficulty levels. However, recent updates have introduced recurring crashes and stability problems, notably in hard mode puzzles. Font sizes and game board scaling issues post-updates cause playability problems, especially on smaller devices. The dark mode color scheme needs improvement for clarity, and some users find the puzzle difficulty inconsistent. Developer responsiveness to bug fixes is appreciated, though some feature requests remain unfulfilled.

Pros

No ads or other distractions, providing a clean Sudoku experience.
Open-source and privacy-focused, with no internet access needed.
Variety of difficulty levels and game modes.
Good developer responsiveness to bugs and updates.
Minimalistic and straightforward UI, appreciated by users who want a pure Sudoku app.

Cons

Recent updates causing app crashes or freezing, especially when generating new games at 'Hard' difficulty.
UI changes in updates resulting in small font sizes and smaller game fields, making it difficult to read and play on smaller phones.
Highlight and color schemes in dark mode or updates are hard to see or poorly designed.
Difficulty and puzzle challenge sometimes inconsistent, with higher levels not challenging enough or requiring guesswork.
Lack of requested features like scanning Sudoku puzzles from paper or improved marker/undo functionality.

Recent reviews

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.