Support

Open Settings inside the app and tap "Restore purchases". That asks the App Store to re-confirm the unlock against the Apple Account currently signed in on the device. If it still does not unlock, the usual cause is being signed in to a different Apple Account from the one that paid — check Settings > [your name] > Media & Purchases on the device. If that is not it, email us with the date of purchase and we will sort it out.

No. The unlock is tied to your Apple Account, so it applies to every iPhone and iPad signed in to that account, including Family Sharing where enabled. Install the app and tap "Restore purchases" if it does not appear straight away.

Progress is stored on the device rather than in an account, so it can be lost if the app is deleted, or if iOS reclaims storage on a device that has been very low on space. If the app is still installed and progress has vanished, email us before reinstalling — reinstalling will not bring it back and we may be able to work out what happened from the version you are on.

Completely. Every puzzle is generated on the device, so there is nothing to download and nothing to wait for. Aeroplane mode, a car with no signal and a hotel Wi-Fi that will not load all work identically to a full connection.

Almost certainly not, and we would like to hear about it if it is. Every puzzle in the app is checked by a solver before it ships and is only included if it has exactly one solution reachable without guessing. If one genuinely seems wrong, email us the puzzle type and the level number and we will re-run it and tell you what we find.

Settings inside the app has a sound toggle. All the sound effects are generated by the app itself, so muting is instant and nothing is downloaded either way.

Yes, in Settings, behind a parental gate so a child cannot wipe their own work by accident. It clears completed levels and saved sessions; it does not remove a purchase, which is tied to your Apple Account and restores at any time.

Five to twelve. The gentlest levels — 4x4 sudoku, addition-only number pyramids and small word searches — suit a five-year-old with an adult alongside; the hardest sudoku and kriss kross levels are a genuine challenge for a twelve-year-old, and for a fair number of adults.

iPhone and iPad running iOS 16 or later. It is portrait-only on iPhone and works in both orientations on iPad.

Refunds for App Store purchases are handled by Apple rather than by us — use reportaproblem.apple.com, or Settings > [your name] > Media & Purchases > Purchase History on your device. If something about the app itself went wrong, email us as well and we will help you make the case.

Email us. Tell us what you did, what happened, and which iPhone or iPad you were on. Suggestions genuinely do get read — a good few of the app's features started as an email from a parent or a teacher.

Yes, freely. Print, photocopy and hand out as many as you like in a school, nursery, childminding setting or holiday club. Please do not resell them or remove the puzzeroo.app footer. If you need something specific — a particular difficulty, a particular theme, a larger pack — ask; we can usually generate it.