Health & Fitness v8.1
Does SmartGym work on iPhone Duo?
Yes. SmartGym is built for iPhone Duo — it runs full screen on the 7.6-inch inner display and adapts its layout for the fold.
At a glance
- Inner display (7.6″)
- Built for Duo
- Outer display (5.4″)
- Works normally
- Built with
- iOS 27.1 SDK
- Version 8.1, read Oct 24, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v8.1
- Oct 16, 2026
- Duo in release notes
- Mentioned
On the inner display
The app reaches the edges of the inner display. Text and controls stay a comfortable size instead of being blown up.
Apple named it in its iPhone Duo launch roundup on October 22: it shows routines and exercise details side by side.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including SmartGym. Open it on the inner display, then add a second app next to it. You can save the pair and come back to it later.
Duo-specific features
- Adaptive layoutRearranges into sidebars or multiple panes on the inner display instead of just stretching.
Evidence & history
Apple,
Developers bring incredible new app experiences to iPhone Duo (Apple Newsroom)
Apple says it shows routines and exercise details side by side.
App build,
Version 8.1 is built with the iOS 27.1 SDK
Apps built with the iOS 27.1 SDK or later can use the whole inner display.
Release notes,
8.1 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 fo…
App Store,
App Store listing has screenshots made for iPhone Duo
The developer published 10 screenshots for iPhone Duo’s inner display.
- : Not confirmed yet → Built for Duo — Named in Apple’s iPhone Duo launch roundup
Latest release notes
Version 8.1 · Oct 16, 2026
8.1 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. SmartGym adjusts automatically, keeping your workout with you as the screen changes. UNFOLD FOR MORE In Book Style, see your routine on one page and your selected exercise on the other. Open fully for a spacious layout with live workout stats, controls and the Smart Action Button always within reach. MORE ROOM FOR YOUR PROGRESS Explore your calendar, goals and workouts side by side. Larger charts, richer workout cards and expanded muscle maps make your training history easier to explore. HIIT Set iPhone Duo in Seated or Tent pose to keep your workout propped up and easy to see while you train. Follow your exercises hands-free, with no stand or dock needed. In Seated pose, the bottom half becomes a live dashboard with your heart rate chart, calories, heart rate zones and workout controls. 8.0 Meet SmartGym 8. One of our biggest updates ever brings powerful new ways to create workouts, get answers, and train your way. READY FOR WHAT’S NEXT Built for iOS 27, watchOS 27, and iPadOS 27, so you can keep training from day one. SMARTGYM INTELLIGENCE Private cloud intelligence powers new workout features. It’s off by default, and you can enable it anytime. Requests are anonymous, and your privacy is a priority. WORKOUT CREATION WITH NATURAL LANGUAGE Create a c
Questions
Does SmartGym work on iPhone Duo?
Yes. SmartGym is built for iPhone Duo — it runs full screen on the 7.6-inch inner display and adapts its layout for the fold.
Does SmartGym work on the outer display?
Yes. iPhone Duo's 5.4-inch outer display behaves like a regular iPhone screen, so every iPhone app works there as usual.
Can I use SmartGym in Split View on iPhone Duo?
Yes. On iPhone Duo every app can be placed side by side with another app on the inner display — developers don't need to opt in. How comfortable it feels at half width depends on the app's layout.