sudokudoYour game
Can I play offline?
Yes. You can play puzzles offline. Rewarded ads need an internet connection and an available ad. Your game does not require a login.
Where are my saved puzzles and progress?
Your puzzles, settings, progress, and Kudo wallet are saved locally on your iPhone. Reopen sudokudo on the same device to return to your saved game. There is no account-based sync between devices.
How do hearts and continuing work?
Each new game starts with five hearts. You can start a free New Game with a full set of hearts.
You can continue once per puzzle, restoring two hearts for 15 Kudo or by completing an available rewarded ad.
Does Undo refund hearts or Kudo?
No. Undo never refunds Kudo or hearts, including those spent before the move is undone.
A little help from Kudo
You begin with 100 Kudo. Use them for a helping hand, and earn more when you complete a puzzle.
How do I use Reveal?
Choose Reveal, then tap a glowing empty cell. Reveal costs 20 Kudo.
How much Kudo does a completed puzzle earn?
| Difficulty | Reward |
|---|---|
| Easy | 20 Kudo |
| Medium | 30 Kudo |
| Hard | 45 Kudo |
| Expert | 65 Kudo |
Can I buy Kudo?
Yes. The Kudo store offers consumable packs of 250, 700, and 1,500 Kudo through Apple’s in-app purchase system. Store availability and displayed prices come from the App Store. You can also earn Kudo by completing puzzles.
Back on track
The game is not responding. What should I try?
Close and reopen sudokudo, then restart your iPhone if the issue continues. Check for app and iOS updates. sudokudo requires iOS 17 or later.
Avoid deleting the app as a troubleshooting step: doing so can erase locally saved puzzles, progress, settings, and Kudo. Contact support before taking that step.
Why is a rewarded ad unavailable?
Ad availability varies. Check your internet connection and try again later. A reward requires completion of an available ad. If you are continuing a puzzle, you can use 15 Kudo instead, provided you have not already used that puzzle’s one continue.
How do I change advertising privacy choices?
Open Settings in sudokudo and look for the privacy options entry when it is available. It is shown when Google’s consent platform requires it. Learn more in our privacy policy.
Why do I see a separate app or missing older progress?
The current sudokudo app installs separately from older development builds that used a different app identity. Their local saves do not automatically transfer to this app. Keep the older app installed if you still need its data.
Still need a hand?
For a gameplay issue, include your iPhone model, iOS version, sudokudo version, and the steps that led to the problem. A screenshot can help; remove any personal information first.