⚠ Disclaimer
NOT RECOMMENDED FOR APPS FROM META, UBER, WHATSAPP, ANY GOOGLE APP REQUIRING AN ACCOUNT, OR ANY BANKING APP. RISK OF ACCOUNT BAN WITH CHANGED SIGNATURE.
For these apps, use Install to Device via USB or download as ZIP (uncheck merge) to preserve original signatures.
Use your own judgement to decide if an app is serious enough about security to warrant not merging. We do not take responsibility for any account bans or restrictions resulting from the use of re-signed APKs.
No ads. No tracking. No internet. Just Sudoku.
A Sudoku app built by a Sudoku nerd, for Sudoku nerds. Every puzzle is generated on the fly, graded by the solving strategies it requires — not just the number of empty cells. From beginner to master, you'll always get a fair challenge.
Smart Hints That Teach You
Most apps just hand you the answer. This one doesn't. Hints are layered — start with a gentle nudge ("look for 7 in box 3"), then a strategy suggestion ("try X-Wing on rows 2 and 7"), and only reveal the full answer if you really want it. Each layer requires a deliberate long-press. Your effort is respected.
Every Strategy, Implemented
The solving engine covers all 27 known Sudoku techniques:
- Naked & Hidden Singles, Pairs, Triples, Quads
- Pointing Pairs & Box/Line Reduction
- X