Apex SudokuSupport
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Frequently asked questions
How are the difficulty levels decided?
Each puzzle is graded by solving it the way a person would, always using the simplest technique that works. Its level is set by the hardest technique it needs: Beginner and Easy need only singles, Medium adds locked candidates and pairs, Hard adds triples, X-Wings and XY-Wings, Expert adds swordfish, XYZ-Wings and coloring, and Master needs chains. Every puzzle has exactly one solution and can be solved by logic alone.
How do hints work?
Tap Hint once to see the next logical step explained, such as which technique applies and where. Tap again, or choose "Show me", to fill in the answer. If a digit you entered is wrong, the hint points that out first. Games won without hints or mistakes count as perfect in your stats.
What happens when I make a mistake?
By default, a wrong digit turns red and counts as a mistake, and three mistakes end the game. You can try the same puzzle again or start a new one. Both behaviors can be turned off in Settings under Gameplay: "Show mistakes" and "Mistake limit".
How do daily challenges and streaks work?
Every day there is one puzzle for each level, and everyone gets the same one. Completing a daily puzzle at any level on that day keeps your streak going. You can also play earlier days from the calendar, but those don't count toward your streak.
Can I tap a number first instead of a cell?
Yes. Use the "Cell first" / "Digit first" button in the game toolbar to switch. In digit first mode, choose a number, then tap every cell it belongs in. Tap a digit again to remove it, or turn on Erase and tap the cells you want to clear.
Where is my progress saved? Will it move to a new phone?
Your games, stats and settings are stored only on your device. There's no account and no cloud sync. Depending on your device settings, your progress may be included in your phone's own backups (iCloud or Google) and restored with them. Deleting the app deletes its data.
How do I reset my statistics?
Go to Settings, then Data, then "Reset statistics". This clears your stats, achievements and daily history. Your current game and settings are kept.
How do I turn off sounds or haptics?
Both have switches in Settings under Feedback. Sounds also stay quiet when your phone is on silent, and they mix with any music you're playing.
Is Apex Sudoku accessible?
Yes. Every cell and control works with VoiceOver and TalkBack, and mistakes, completions and hints are announced. Text follows your system text size, wrong digits are marked by more than color alone, and animations respect Reduce Motion.
Does Apex Sudoku need an internet connection?
No. Every feature, including new puzzles and daily challenges, works completely offline.
Privacy
Apex Sudoku doesn't collect any personal information. Read the full privacy policy.