Match a target angle by feel, then pass the phone
Does Obtuse: Degrees of Chaos work on iPhone Duo?
Yes, the developer says so: on a Duo with iOS 27.1 or later, you match a target angle with the hinge; other iPhones use tilt.
- App Store confirmedVamsi Yuvaraj Suggula, the developer, in the App Store description for version 1.0.1 (released October 9, 2026), which says the Duo automatically uses the app's Fold mode on iOS 27.1 or later, matching the hinge angle, while other iPhones use Tilt.
Adapted for the fold
We're waiting on details of exactly what Obtuse: Degrees of Chaos changes for the fold. Are you the developer? Tell us.
About Obtuse: Degrees of Chaos
Obtuse: Degrees of Chaos is a pass-the-phone angle game. Each player tries to match a target angle without seeing their own measured angle. The developer says scores come from the angle the phone reports, not from calibrated measurements. On the Duo, the game reads the hinge, and other iPhones use tilt.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· App Store page reviewed
App Store confirmed · iphone-duo
The App Store description mentions iPhone Duo: "FOLD ON IPHONE DUO Duo automatically uses Fold on iOS 27.1 or later; ordinary iPhones automatically use Tilt." (version 1.0.1, released October 9, 2026).
App version: 1.0.1.
Store text only: we haven't seen the app running, and the store page doesn't show how each pose is used.
View reviewed evidence ↗
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Sources: Obtuse: Degrees of Chaos on the App Store (apps.apple.com)