Workouts with an exercise video above the controls when the Duo is half-folded
Does Fitly: AI Adaptive Workouts work on iPhone Duo?
Yes, the developer says so: open, two pages side by side; half-folded, the workout video above the controls; closed, the tabs move to a side rail.
- App Store confirmedBerk Demir, the developer, in the App Store description and the release notes for version 2.1.1 (released October 14, 2026), which describe the Duo layouts.
Adapted for the fold
- Closed · Outer display
Side tabs on the cover
Closed, the tabs move to a side rail and the screen gets its full height.
- Open · Inner display
Two pages side by side
Open like a book, Today, Coach, Workout, Nutrition, Recovery and Progress show two pages side by side, with nothing on the fold. In Coach, the conversation is on one page and the latest visual answer on the other.
- Book · Partly folded
Exercise above, controls below
Half-folded, the exercise video plays on the upper half, during your sets too, with the controls on the lower half.
About Fitly: AI Adaptive Workouts
Fitly plans workouts and tracks exercise and meals. On the Duo, folding or unfolding keeps your place, and a panel you have open stays open.
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 2.1.2 (released October 22, 2026) mention iPhone Duo: "Fitly 2.1 adds iPhone Duo support."
App version: 2.1.2.
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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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.
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Sources: Fitly: AI Adaptive Workouts 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