Valley Run for iPhone Duo

Name: Valley Run
Availability: InStock
Author: Adam Bellow

Adam Bellow · Listed Oct 16 · Checked Oct 16

A marble game where folding the phone pumps the swing

Does Valley Run work on iPhone Duo?

Yes, the developer says so: in version 1.1 of Valley Run, folding and unfolding the Duo pumps the marble, and the game's horizon sits on the fold.

Developer claimedThe developer, in the App Store description and on the game's website, which say the iPhone Duo's hinge controls the marble, with the horizon on the fold. Version 1.1 came out on October 13, 2026.

View on the App Store

Website

Adapted for the fold

We're waiting on details of exactly what Valley Run changes for the fold. Are you the developer? Tell us.

About Valley Run

Valley Run sends a marble through neon courses, collecting gems and timing turns to build a score. Its course builder places obstacles and gems along your own music.

On the iPhone Duo, Adam Bellow says, the hinge pumps the marble like a swing: fold the phone as the marble turns, then unfold it as it rolls back down. The horizon sits on the fold. Other iPhones use tilt controls. Version 1.1 costs $0.99 in the US, with no ads or in-app purchases.

Evidence reviews

What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.

Oct 16, 2026 · Developer statement reviewed
Developer claimed · iphone-duo
Read the App Store description and the game's website, and looked at the nine App Store pictures. The description names play with the hinge; the pictures show tall phone screens, not the game running on a Duo.
App version: 1.1.
The maker's preview video shows an ordinary iPhone with a Dynamic Island, and the picture named shot-duo-fold is promotional art with no bent hinge. No build was tested on a Duo.
View reviewed evidence ↗

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Need to update the listing? Email the editor.

Sources: Valley Run on the App Store (apps.apple.com) · Valley Run in Apple's app lookup (itunes.apple.com) · Valley Run's website, on the hinge controls (valleyrunapp.com)

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