A GPS running and weight diary, optimized for the Duo
Does FITAPP work on iPhone Duo?
Yes. FITAPP's App Store page says it supports iPhone Duo, so the update is out. FoldHunt's editor hasn't seen it running yet.
- App Store confirmedThe developer, in the release notes for version 9.9.4 (released October 9, 2026): "Optimized for iPhone Duo". The notes say nothing more. There are no pictures of it on the Duo yet. The App Store seller is FITAPP GmbH (id 1015819468).
Adapted for the fold
We're waiting on details of exactly what FITAPP changes for the fold. Are you the developer? Tell us.
About FITAPP
FITAPP records runs and walks by GPS with voice feedback, and keeps a weight log. Version 9.9.4 says it is optimized for iPhone Duo, without saying what changes. There are no pictures of it on the Duo yet.
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 release notes for version 9.10.0 (released October 15, 2026) mention iPhone Duo: "+ Optimized for iPhone Duo Additionally, we have increased the app performance."
App version: 9.10.0.
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 ↗
Related guides
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Do your apps work on iPhone Duo? What happens before they're updated
Every iPhone app opens on iPhone Duo, but only updated ones fill the inner display. What an app looks like before its developer adapts it, how to tell which are ready, and which popular apps have said so.
Is this your app?
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Sources: Running Tracker App – FITAPP on the App Store (apps.apple.com)
More for iPhone Duo
SmartGym
SmartGym
Workout tracker with a layout for every pose, the routine and the exercise side by side
Launch partner: Named by Apple in its Newsroom article of October 22, 2026, on apps optimized for iPhone Duo. The App Store release notes for version 8.1 (released October 16, 2026) say: "SmartGym is ready for iPhone Duo, with an interface that adapts as you fold, unfold and move through your workout. EVERY POSE Enjoy layouts designed for every pose: Closed, Book Style, Fully Opened, Seated and Tent."
- Book
- Open
- Standing
Blankie
Cody Bromley
Mix rain, waves and noise in any pose, or set it half folded as a bedside sound machine
Simulator verified: Cody Bromley, the developer, in a submission to FoldHunt on October 28, 2026, and in Blankie's iPhone Duo guide, with captures from the simulator. The App Store seller is Cody Bromley. The release notes for version 2.1.0 (released October 27, 2026) add support for iPhone Duo.
- Book
- Closed
- Standing
- Split View
Meditation Timer - Zenitizer
Manuel Kehl
A meditation timer that starts when you stand the Duo up like a tent, like an hourglass
Simulator verified: Manuel Kehl, the developer, in a submission to FoldHunt on October 21, 2026, with unframed captures from the iPhone Duo simulator in the press release (impresskit.net) and a walkthrough on YouTube. The release notes for version 1.18 (released October 20, 2026) bring full iPhone Duo support, with layouts for the inner and outer displays, the fold and landscape, and a meditation that starts when you stand the phone up like a tent.
- Standing
- Open
- Book
- Closed