Free
In-App Purchases
About
No ads. No subscriptions.
Tumblewright is one small safe a day. Turn the dial and watch the needle rise as you near a wheel's number. Tap the stethoscope and sweep the dial to listen: a snick means you found the number and a lamp lights, a tick means another wheel's number, and a tonk is a decoy. Light every lamp and the door swings open.
Every cue shows on screen, so you can play by sight alone with the sound off. Sound and haptics add the feel of a real dial.
Each safe you open holds a part for a clockwork chain-reaction machine, and a letter in a running mystery from the lockmaker who built the safes. Fit the parts onto your workshop wall and watch the machine run.
FREE, FOREVER
• Every daily safe
• Unlimited practice safes
• The share grid, your logbook and your rank
• The home-screen widget, and a morning reminder if you turn it on
• The whole first machine: all 7 of its parts and the first 7 letters
THE WORKSHOP KIT
One optional in-app purchase, bought once: US$4.99 (the App Store shows your local price). The Workshop Kit unlocks:
• Every machine after the first, including new ones as they are added
• Every letter after the seventh, including new ones
• 3 desk themes, 2 finishes and 3 dial faces
• The glass practice safe, for practice safes
Without the Kit you lose nothing you have earned. After the first machine, new parts wait in a crate and new letters stay sealed. Buy the Kit and everything opens at once. There is no currency, nothing random for sale, and no paying for listens, hints or past safes.
HOW A DAY WORKS
• A new safe arrives at midnight, your local time.
• Par is the number of listens a sharp safecracker needs. Open the safe in as few listens as you can.
• Share your result as a little grid.
• Practice as much as you like; only the daily safe counts.
Tumblewright collects no data: no accounts, no analytics, no tracking. Your workshop stays on your phone.
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What's New in Tumblewright
1.0
November 6, 2026
1
Subscriptions & In-App Purchases
$4.99
Workshop Kit
All machines and letters, themes, glass safe






