Productivity apps for iPhone Duo

More of Slack and more of your messages on screen at once when iPhone Duo opens.

Launch partner: Named by Apple as an iPhone Duo launch partner.

An inbox for quick notes: on the cover, beside the note you picked open, and standing

Developer claimed: Capture's own account (@getcaptureapp) says it will be ready for iPhone Duo on day one, with four pictures of it closed, open and standing (@getcaptureapp on X). The App Store page does not mention the Duo yet.

Goal rings on the cover, chart beside them open

Developer claimed: David Steppenbeck (@dsteppenbeck) posted GridKit on the Duo simulator closed, half-folded and open (@dsteppenbeck on X).

A grid of habit cards on the cover; open, a sidebar of collections beside it

Developer claimed: Adam Kovacs, the developer (Adam KP on X), in a post with a video of Habitsy in the iPhone Duo simulator (@AdamKPx on X). The App Store page does not mention the Duo yet.

Markdown drafts on the cover, open and half-folded

Developer claimed: Zhao Xin (@owenzhao) posted a video of Writer for Markdown on the Duo simulator, closed, open and half-folded (@owenzhao on X). The App Store seller is listed as 鑫 肇 and the listing does not mention the Duo yet.

The day's briefing on one half and the AI chat on the other, open or half-folded

Developer claimed: Tanmay Sonawane, the developer, in a post on X with a video of Halo closed, half-folded and open on the iPhone Duo, saying it will be submitted that day (@tanmays on X). The App Store page does not mention the Duo yet.

Timed notes for your partner, with a layout closed, half-folded and open

Developer claimed: Radomir Drndarski, the developer, in a reply on X to Federico Viticci's call for iPhone Duo apps, with a video of Pipnote closed, half-folded and open on the iPhone Duo, saying it is ready (@radomir_3 on X). The App Store page does not mention the Duo yet.

Day planner that gives the current activity's tasks their own half when folded.

Developer claimed: Gabriel Guarino, on the SuperPlanner press kit (superplanner.app), with screenshots and a showcase video from the iPhone Duo simulator.

Your Mac's desktop on the cover or filling the open Duo

Developer claimed: Fernando Bunn (@fcbunn) posted Glassy Desk on the Duo simulator, closed and open (@fcbunn on X).

Customize beside the Intervention Gallery when open, the gallery alone closed

Developer claimed: Seb Vidal, an iOS developer on the one sec team, posted one sec on the Duo simulator, opening and closing, while asking about a SwiftUI bug that hides the back button closed (@SebJVidal on X). The App Store page doesn't mention the Duo yet.

To-dos one list at a time on the cover, with a sidebar of all your lists when open

Developer claimed: austin blake, who makes Stuff, in a post on X with a video of it on the iPhone Duo, saying it is being optimized for the Duo with more to do (@austnstuff on X). The App Store seller is 2196, LLC, whose website is the developer's; the App Store page does not mention the Duo.

A task list closed, list and details side by side open, and a full week calendar

Developer claimed: Liat Mordechay Hertanu of 24me, in a reply on X saying 24me is coming to iPhone Duo with layouts redesigned for the open display (@liatmord on X), with design previews on 24me's site (24me.app).

Today's plan on the cover, and open flat, the plan beside events and overdue tasks

Developer claimed: Josuam Collazo, the developer (on X as JC Mobile App Studio, @JCMAppStudio; the App Store seller is JC Mobile App Studio LLC), posted screenshots of DayCast on the iPhone Duo, saying it is still being tuned in the simulator (@JCMAppStudio on X). The App Store page does not mention the Duo yet.

Your groups closed, and everyone's week with their photos when the phone is open

Developer claimed: Liat Mordechay Hertanu of 24me, in a reply on X saying GroupCal is coming to iPhone Duo with layouts redesigned for the open display (@liatmord on X), with design previews on 24me's site (24me.app).

Habit cards on the cover, a daily progress chart beside them when open

Developer claimed: The developer (@techchee on X) posted a Duo simulator video of HabitPath after updating its dashboard for foldables (@techchee on X), and the App Store notes for version 3.1.0 list full support for the iPhone Duo screen layout.

Saved articles as magazine covers when closed, a photo-and-text spread when open

Developer claimed: Pung Worathiti, the developer, in a reply on X to a call for day-one iPhone Duo apps, with a video of LaterAI on the iPhone Duo (@pungme on X). The App Store page does not mention the Duo yet.

Your day planner and habit streaks in two panes when open, your life in years on the cover

Developer claimed: Cristian Rus, the maker, in a post on X with images of Left on the iPhone Duo, saying it comes to the Duo on day one (@CristianRus4 on X). The App Store page does not mention the Duo yet.

A leather notebook on the cover that opens into a spiral notebook bound at the fold

Developer claimed: Suman Hansada, the developer, in a reply on X to Linda Dong's post about Duo App Store submissions with previews of NoteWorthy on the iPhone Duo, saying the Duo version is coming soon (@SumanHansada on X). The App Store page does not mention the Duo yet.

A podcast player with the transcript beside the artwork when open

Developer claimed: The developer, Shawn Hickman, posted Sofa's redesigned podcast player on the Duo and said iPhone Duo support is coming along (@poohbers on X).

Focus app that grows a village, with a welcome that spreads out when the Duo opens

Developer claimed: Eric Vargas (@brol1dev), in a post on X saying they cooked iPhone Duo support, with a video of Scroll Survival on the cover and the open iPhone Duo.

Local file sharing, with the address on one side and your files on the other when open

Developer claimed: The developer, posting as 不想上班的胖豹 on X with a video of Share Server on the iPhone Duo simulator (@riddle_ling on X). They say they had Codex add iPhone Duo support and will submit it once Xcode 27.1 is out of beta, so the App Store version may not have it yet.

Markdown notes, the note list moves in beside the note you're writing when open

Developer claimed: The Smolpad account on Bluesky, with iPhone Duo simulator screenshots closed and open, saying Smolpad is ready for the Duo at launch (bsky.app). Smolpad's blog post of September 10, 2026 says the two-column layout shipped in version 1.3.5 (smolpad.com).

Daily planner that puts your lists and projects beside the day when the Duo opens.

Developer claimed: Harry Ng, the developer, in a Mastodon post with a screen recording of a first draft of Aida's Duo layout (mastodon.social). The App Store seller is Build with Harry.

Day planner that opens into side-by-side day columns for a trip.

Developer claimed: Joseph Humfrey, in a Bluesky post (bsky.app) showing it in the simulator. The App Store seller is Selkie Design Ltd, whose site names Joseph Humfrey as the maker.

Risk register on the cover, register and risk detail side by side when the Duo opens.

Developer claimed: Ricardo Martinez, in the "Risky Business on iPhone Duo" post on the app's blog (riskybusinessapp.net), says version 2.13 with the Duo layout is held back until the phone goes on sale. The App Store seller is Ricardo Martinez Benesenes.

Text to speech reader that keeps the spoken line highlighted as the phone opens.

Developer claimed: Dani Devesa Derksen-Staats, in a Mastodon post (iosdev.space). The App Store seller is Daniel Devesa Derksen-Staats.

A fuel form that fits one half beside Safari on Duo

Developer claimed: Nitin Alabur, the developer (Maavu Technologies), in a post on X showing Click2Track in Split View beside Safari on the open Duo, before and after fixing its two-pane layout (@nitinalabur on X). The App Store page doesn't mention the Duo yet.

A paper notebook app that opens into a two-page spread on the Duo

Developer claimed: slaven (@slaven on X), who codes Penbook, posted a picture of it on the open Duo and said Pencil Research is going deep on iPhone Duo support, crediting Ben Fox (@ductionist) for the work (@slaven on X). The App Store text doesn't mention iPhone Duo. Not yet stated as released.

A room's one-tap pings beside what was sent, on the open Duo

Developer claimed: Mahdi, who is building PingRoom, posted it on the open Duo while optimizing the app for iPhone Duo (@MahdiSPHP on X). The App Store page doesn't mention the Duo yet.

A to-do list for bookmarks, with actions and tags beside the links

Developer claimed: The developer, Josh Hrach, posted DoMarks on the open Duo simulator on Mastodon and said it should be Duo ready on day one (iosdev.space).

The day's plans beside the family's month on the open Duo

Developer claimed: The app's account (@southtyrolpool on X) said Famalio is ready for iPhone Duo and submitted, with a screenshot of it on the open Duo (@southtyrolpool on X).

Kanban boards, with the lists down the side and the columns across the open Duo

Developer claimed: Stephen Robles, the developer, in a Bluesky post with a screenshot of Kan Do on the open iPhone Duo (bsky.app).

Notes and documents app with its toolbar moved to the side strip on the closed cover

Developer claimed: Viktor Pali, a Craft co-founder, in a Bluesky post saying the team spent the summer getting Craft ready for day one on iPhone Duo (bsky.app). The team says it is still polishing. Specific fold adaptations are not yet documented.

Calendar that shows today closed, then the month beside the day as you open it

Developer claimed: The developer's own website, which presents Hourfold as built for iPhone Duo with an interactive folded, half open and unfolded demo (hourfold.app). Specific fold adaptations are not yet documented.

Personal contacts app with its tabs in the side strip on the closed cover

Developer claimed: The app's own Bluesky account, saying Mesh is ready for launch day with support for the iPhone Duo (bsky.app). Specific fold adaptations are not yet documented.

A study timer with a cozy anime companion, shown full screen on the open Duo

Developer claimed: Roman Savchyn, the developer, in a Bluesky post with a screenshot of Miyu on the open iPhone Duo, saying there is still a lot to fix before the hardware ships (bsky.app). The App Store page does not mention the Duo. Specific fold adaptations are not yet documented.

Agenda and daily note that the developer is planning to rework for the Duo

Developer claimed: The developer, Chris Lawley, in a Bluesky post with simulator screenshots, saying Parchment works acceptably on iPhone Duo and that Chris plans a nicer experience (bsky.app). No Duo-specific layout yet. Specific fold adaptations are not yet documented.

Subtitle file tools in one column closed, stretched across the open display

Developer claimed: The developer's YouTube channel Edge Mac, in a video recording the app being adapted for iPhone Duo in the simulator (youtube.com). Specific fold adaptations are not yet documented.

Goal tracker with a sidebar of goals beside the one you picked when open.

Developer claimed: Samuel Yanez, the developer, in a Bluesky post with a video of Moku on the iPhone Duo simulator (bsky.app). Samuel says Moku now has split-view navigation and adaptive layouts for iPhone Duo and iPad. Specific fold adaptations are not yet documented.