Sudoku

Spend a little time with the classic number puzzle: 2500 puzzles over 5 levels!

AI Factory Limited · uk.co.aifactory.sudokufree

3.0 out of 5 (2 ratings) 5M+ downloads v2.44 34.6 MB Android 6.0+ PEGI 3 · Everyone

Download APK 34.6 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v2.44 (90)
Updated: Aug 21, 2026 (2 months ago)
APK size: 34.6 MB
Requires: Android 6.0+ (API 23)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Board (game)
Listed since: Jan 15, 2021 (at least)
Permissions: 13
Website: aifactory.co.uk
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Sudoku is a game by AI Factory Limited in the Board category, listed since at least January 2021. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 13 permissions, none of them sensitive. It asks for the same permissions as version 2.43. The game can read the advertising ID that ad and analytics services use.

What's new in v2.44

Minor updates

Description

From the listing uploaded by “appupdater”.

★ Top Developer (awarded 2011, 2012, 2013 and 2015)★ Sharing the same top quality gameplay, graphics and interface as the rest of our app library, AI Factory's Sudoku is an essential download for any Sudoku or brain training fan! You never need a paper puzzle again! - 2500 Sudoku puzzles over 5 difficulty levels, covering easy through to medium, hard, and extreme levels - Various different modes for notes input to cater for all playing styles -Pre-fill notes option -Auto-clear notes option - Optional hints, undo and board aids - 4 fonts/sets of symbols & 3 boards - Statistics tracking, including fastest times, average times and completion % for each level - Super smooth interface and graphics - Suitable for both Phones and Tablets This free version is supported by 3rd party ads. Ads may use internet connectivity, and therefore subsequent data charges may apply.

Version history

3 versions are listed, going back to v2.42.

v2.44 LATEST Aug 21, 2026 34.6 MB TRUSTED v2.43 Mar 27, 2026 34.6 MB TRUSTED v2.42 Dec 28, 2025 34.5 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 21, 2026.
Certificate issued to “AI Factory Limited” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Aug 21, 2026
Validated against Google Play Aug 21, 2026
Signed byCN=Daniel Orme, OU=Technical Director, O=AI Factory Limited, L=London, ST=London, C=UK
Signing certificate (SHA-1)A2:50:1A:41:47:56:BF:37:CF:4A:4B:D6:20:BB:EE:19:73:DB:67:59
File MD5f108b391d3357039855b2640a0820a08
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (13)

Sudoku requests 13 permissions, none of them sensitive.

Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Apphub bind apphub service (custom) com.applovin.array.apphub.permission.BIND_APPHUB_SERVICE
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) uk.co.aifactory.sudokufree.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

Sudoku APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Sudoku APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is f108b391d3357039855b2640a0820a08.