A shared gratitude jar: open the Duo and the jar faces a joy from it, like a book
Does JoyJar work on iPhone Duo?
Yes, and seen in a simulator recording: open, the jar sits on one half and a joy on the other, and Rainy day plays two joys at a time. Not on the App Store yet.
- Simulator verifiedReAlign Leadership LLC, the developer, in a submission to FoldHunt on October 21, 2026, with a plain screen recording of the app on the iPhone Duo simulator (iOS 27.1) on YouTube and a page about the Duo layouts (joyjar.app). JoyJar is coming soon to the App Store and Google Play.
Adapted for the fold
- Open · Inner display
The jar beside a joy
Open, the jar sits on one half and a page for today's joy on the other; once today has one, that half shows a joy from the jar. Rainy day plays your joys back two at a time, one on each page, the Joys list and the photo wall stay on one half while the joy you tap opens on the other, and sending a joy puts the postcard beside its words.
- Book · Partly folded
Half open on a table
Stood half open like a small laptop, you write on the upper half, with the keyboard, or your photos when it's down, below the fold.
- Closed · Outer display
The phone app on the cover
Closed, JoyJar is the phone app, with Jar, Joys and You down the right edge, clear of the clock column and the camera.
- Split View · Two apps
Beside another app
In Split View, JoyJar fills its half as the phone app, and a joy you had open stays open.
About JoyJar
JoyJar is a gratitude jar for iPhone and Android. You drop the small good things of each day into a jar, alone or shared with up to six people, on any phone; someone without the app can add a note through the jar’s guest link. On a rainy day, the jar plays your joys back to you, and you can send any joy as a postcard. It’s free for 30 days, then a one-time $4.99, with no subscription and no ads.
On the open iPhone Duo, five screens use both halves: home, Rainy day, the Joys tab, the photo wall and sending a joy, and they work held wide or tall, flat or half open. Closed, it’s the phone app. Closing, opening or turning the Duo keeps your place, along with any words you were writing. JoyJar is coming soon to the App Store and Google Play.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· Simulator recording reviewed
Simulator verified · iphone-duo
Watched the developer's 35-second recording, described as a plain screen recording on the iPhone Duo simulator with only trimming, with the 9:41 status ring: the closed phone with the jar, then open with the jar beside a joy, Rainy day with two joys side by side, and the Joys list beside the joy that was tapped.
Poses shown: Closed, Open. These are observations of the evidence, not a test of every interaction.
App version: Not recorded in this evidence. Environment: iPhone Duo simulator, iOS 27.1.
The half-open and Split View layouts are shown only in pictures on the developer's site. No app version is given, the app isn't on the App Store yet, and no build was tested.
View reviewed evidence ↗
Watch it unfold
Related guides
Split View on iPhone Duo: two apps side by side
iPhone Duo is the first iPhone that can show two apps at once. How Split View works, what its limits are, and which apps are built to share the screen.
iPhone Duo poses: closed, open, book, standing and Split View
A plain-language guide to the ways you will hold iPhone Duo, what the phone itself does in each, and the apps and ideas that make the most of them. For anyone buying one, and for anyone building for it.
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.
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Sources: JoyJar on iPhone Duo (joyjar.app) · JoyJar on iPhone Duo, closed and open (simulator recording) (youtube.com)
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