Find your
angle.
A little help for a game of instinct. See a target, make your guess, and aim for the lowest total error.
Folding play requires iPhone Duo with iOS 27.1 or later. Other iPhones: touch demo only.
See the target.
Three rounds. One target each round. Both players receive the same angle in a two-player game.
Go by instinct.
In physical play, fold to your guess and hold steady. In demo mode, drag the illustration.
Lock it in.
Your score is the difference between the target and your guess. The lowest total error wins.
A few quick answers.
Why am I seeing demo mode?
Folding play requires iPhone Duo with iOS 27.1 or later. Other iPhones support the touch demo only and cannot measure a fold. If hinge measurement is unavailable, you can explicitly choose the demo. The demo uses a draggable illustration and keeps its best score separate from physical play.
What does the angle mean?
Closed is 0°, a right angle is 90°, and fully open is 180°. For a 70° target, a 74° guess scores 4° of error. Zero error is a perfect guess.
Why can’t I lock my guess?
The game needs a fresh, steady angle before locking. Hold still for a moment. After returning from another app, allow a new reading to settle. In demo mode, stop dragging briefly. If measurement remains unavailable, return home and use the explicitly labeled demo.
Why is the first player’s result hidden?
Both players guess the same target. The first result stays sealed until the second player locks, so the second player does not get a scoring hint. Open the phone flat before passing it.
How do I reset records or change haptics?
Open Settings from the home screen. Turn Haptic feedback on or off, or choose Reset records and confirm. Resetting deletes both physical-play and demo records on this device.
What happens when I share a score?
After a completed game, Share score opens the iOS share sheet with a result image and text. Choose where to send them. The card shows your actual totals and round errors; demo results are marked. What a destination includes depends on that app’s sharing support.
Do I need an account or an internet connection?
No. Playing and keeping records work locally. The destination you choose for sharing may need a connection. Fold On° has no accounts, ads, or analytics.