A symptom calendar with two configurable panes on the open Duo
Does Symptora: Symptom Tracker work on iPhone Duo?
Yes, the developer says so: version 1.2.0 adapts to the Duo, with two configurable panes when open and sheet buttons that stay reachable when closed.
- Developer claimedLucidena, the developer, in its changelog for version 1.2.0 (October 8, 2026), which describes Duo layouts. The App Store now lists version 1.2.1 (released October 16, 2026), whose notes don't mention the Duo.
Adapted for the fold
- Open · Inner display
Arrange two calendar panes
Open, each pane can show a month, an agenda or a day's entries. The panes sit side by side when the display is wide and stack when it's held upright. Insights and Visit Prep can take the right pane.
- Closed · Outer display
Keep sheet buttons reachable
Closed, sheets keep Cancel, Save and Done in a fixed bar at the top.
About Symptora: Symptom Tracker
Symptora is a private symptom tracker that logs in seconds and keeps your data on your device, sharing it with your doctor through Apple Health. Tap the symptom, tap how it feels, and add a note, a photo or a back-dated entry. You can also log hands-free with Siri, Shortcuts or the Action Button. It’s a one-time purchase, with no subscription or account.
Its changelog for version 1.2.0 describes two configurable calendar panes on the open Duo, and sheets with their buttons fixed in a top bar on the cover.
Related guides
The best iPhone Duo apps so far (October 2026)
The apps worth installing now that iPhone Duo is on sale, from the apps Apple named as launch partners to indie apps whose developers have shown a real iPhone Duo layout, picked for what they do when you open the phone.
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: Symptora changelog for version 1.2.0 (symptora.app) · Symptora on the developer's site (symptora.app) · Symptora: Symptom Tracker 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