The apps that finish the job rather than start it
Now the device is out, the useful question is not whether it is bigger. It is which jobs can be completed on it and handed on, without opening something else to do the last part.
A folding phone invites a claim nobody should make for it, which is that it replaces a computer. It does not, and the apps here are not offered as proof that it does. What a few of them do is narrower and more useful: they take a job from the beginning to a finished file that leaves the app, so the trip back to a desk is removed rather than postponed to the end.
That is the selection rule, and it excludes some good apps that are elsewhere on the site. A companion app mirroring what a desktop is doing, or a viewer for work made somewhere else, is not on this list however well it uses the room. The test is whether the thing you came to make exists when you put the phone down, in a format somebody else can open.
The order runs from jobs that genuinely finish here to jobs that mostly do.
- 1
LumaFusion
Video editing · Luma Touch LLC
Multi-track editing where the timeline, the preview and the library are all needed at once, ending in an exported cut rather than a project file to be opened properly later. It is the clearest case on the site of work that used to require a desk and now requires somewhere flat to put the phone.
- 2
PDF Expert: Editor & Converter
Readdle Technologies Limited
Read it, annotate it, fill it in, sign it, merge it with the other one, send it. That is most of the small administrative work that has ever been the reason a laptop went in the bag, and none of it is hard. It is only hard on a screen where the form field and the question it belongs to cannot both be legible.
- 3
Obsidian - Connected Notes
Dynalist Inc.
Markdown files in a folder on the device, which means what you make is not held inside the app that made it. Anything leaving as a plain file has already solved the problem the rest of this list is about: there is no export step, because the thing being written was a file the entire time.
- 4
Microsoft Word
Microsoft Corporation
The format other people send, and the one a reply goes back in. Tracked changes and comments live in the margin, and the margin is the first thing a narrow screen gives up. Accepting a change you cannot see in the context of the sentence it rewrites is how a document quietly gets worse.
- 5
Ulysses: Writing App
Ulysses GmbH & Co. KG
A writing environment where the library, the sheet and the export settings are one continuous system across the Mac, iPhone and iPad, by the developer's own description. Export is the word that earns it a place: the end of the job is a document, a post or an ebook rather than text still sitting in the app.
- 6
Google Docs
Google LLC
The document, the suggestions on it, and the people making them, where resolving a comment is the actual work rather than an interruption to it. A suggestion you cannot read beside the sentence it changes is a notification; a suggestion beside that sentence is an edit you can make and be done with.
- 7
Darkroom: Photo & Video Editor
Photo editing · Bergen Co.
Raw in, finished picture out, with the filmstrip and the adjustments visible while the decision is being made. Photography is the job most likely to have started on the phone already, which makes it the one where going somewhere else to finish is the strangest part of the routine.
The selection and the order are ours. Each entry is written from that app’s own App Store listing, linked beside it, and this page from Apple's iPhone Duo product page. Drafted with AI assistance and checked back against those sources before publishing; the disclosure page explains how. The iPhone Duo has been on sale since 23 October 2026 and nothing here has been seen running on one, so what each entry says about the fold is an argument rather than a test.