Support

Is there a free version?

The App is a paid app that you buy once. After you buy it from the store, you can play every repair puzzle at no extra charge. There are no in-app purchases, subscriptions, or ads. Hints are free too.

Do I need to buy it again after changing devices or reinstalling?

No. If you are signed in with the same account you bought it with (your Apple Account on iOS, your Google Account on Android), you can download it again from the App Store or Google Play at no extra charge. Because there are no in-app purchases, there is no “Restore purchases” step in the App. To move your progress, see “Saving and progress.”

Can I get a refund?

Purchases are made through the store, so refunds follow each store’s refund policy. On iOS, request one from Apple’s Report a Problem page. On Android, follow Google Play’s refund help. We cannot issue refunds directly.

I don’t know what to do

Walk through the rooms of the house and tap a silent machine to look at it up close. Move its parts and try it: the way it moves will change. Engravings, worn marks, and how the machine behaves when you try it are your clues. We keep written explanations to a minimum on purpose.

Are there hints?

Yes. On the close-up screen of a machine, tap “Hints” to see three levels of hints for every puzzle: where to look, how it works, and which way to go. Choose how deep you want to go. There is no waiting and no charge, and using hints never counts against you. Even the third hint does not give the answer, so the last step is yours.

I can’t move a machine

A machine that is held by a latch has a tag hanging on it. Repair the machine in the room written on the tag first, and the latch will come off. There is more than one order to solve the puzzles, so if you are stuck, try a machine in another room. Parts you have already set stay where you left them.

There is no sound

• Turn up your device’s volume.
• On iPhone and iPad, no sound plays while Silent mode is on. Turn Silent mode off and try again.
• Check which headphones or speakers are connected.

The puzzles are designed so you can also solve them by watching how the machines move, even where you can’t play sound.

Can I play in Japanese?

Yes. On the title screen, tap “日本語” to switch to Japanese, or “English” to switch back. The App remembers your choice the next time you open it.

Can I stop and continue later?

Yes. The parts you have set, the machines you have repaired, and the hints you have seen are saved automatically. Next time, tap “Continue” on the title screen.

I want to start over

Tap “New game” on the title screen, then tap “Start over” to confirm. Your current repair progress will be lost and cannot be recovered. Your language setting stays as it is.

Can I move my progress to another device?

Your progress is saved only on your device. There are no accounts and no cloud saves, so the App itself cannot transfer it. If you move to a new device using a device backup (such as iCloud Backup or Google’s backup), your progress may come along with it.

How do I delete my saved data?

Delete the App from your device, and all saved progress and settings are removed. We never receive your play data, so there is nothing to ask us to delete.

Which devices are supported?

iPhone and iPad with iOS 15.0 or later, and devices with Android 8.0 or later.

Do I need an internet connection?

No. Once downloaded, the App works fully offline.

I see “Could not save”

The App cannot save when your device is low on storage. Free up some space by removing apps or photos you don’t need, then try again.

The App won’t start or stops responding

1. Close the App completely and open it again.
2. Restart your device.
3. Update to the latest version from the App Store or Google Play.
4. If it still doesn’t work, please contact us below.