Opens and creates archives, with layout fixes for the Duo and side-by-side apps
Does SpeedZip: Unzip & File Manager work on iPhone Duo?
Yes, the developer says so: version 1.5.3 of SpeedZip improves its Duo layouts and fixes buttons that disappeared when switching sides in Split View.
- App Store confirmedThe developer, in the App Store release notes for version 1.5.3 (released September 21, 2026): layouts refined on both Duo displays and when sharing the screen with another app, with a fix for buttons disappearing when switching sides. The developer's website goes by Massimo.
Adapted for the fold
We're waiting on details of exactly what SpeedZip: Unzip & File Manager changes for the fold. Are you the developer? Tell us.
About SpeedZip: Unzip & File Manager
SpeedZip creates, opens and extracts archives. Version 1.5.3 refines its layouts on both iPhone Duo displays and when it shares the screen with another app, the release notes say, and fixes buttons that disappeared when switching sides.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· App Store page reviewed
App Store confirmed · iphone-duo
The App Store release notes for version 1.5.5 (released October 18, 2026) mention iPhone Duo: "Improved iPhone Duo layouts across Home, Me, Settings and readers, with side-by-side or stacked menus and details."
App version: 1.5.5.
Store text only: we haven't seen the app running, and the store page doesn't show how each pose is used.
View reviewed evidence ↗
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?
Add the badge to your site or press kit. It links back to this page, where fans can upvote you.
<a href="https://foldhunt.com/apps/speedzip-pro/"><img src="https://foldhunt.com/badges/featured-on-foldhunt.svg" alt="Featured on FoldHunt" width="220" height="54"></a>Need to update the listing? Email the editor.
Sources: SpeedZip on the App Store (apps.apple.com) · Massimo's website (massimoo.app)
More for iPhone Duo
KeepCount
Tyler Hillsman / 1881 Digital, LLC
A board of tally counters: half-folded, counts sit above the fold and the buttons below
Simulator verified: Tyler Hillsman, the developer, in a submission to FoldHunt on October 17, 2026, with an unframed screenshot of the app in the iPhone Duo simulator in the press kit (keepcount.app). The App Store seller is 1881 Digital, LLC. The release notes for version 1.8 (released October 12, 2026) say KeepCount now adapts to the iPhone Duo's inner and outer displays, with a tabletop layout when it's partly folded.
- Book
- Closed
- Open
Calc Pro - The Best Calculator
Panoramic Software Inc.
Ten calculators and converters, with the tape of results beside the calculator when open
Simulator verified: Panoramic Software Inc., the developer, in a submission to FoldHunt on October 18, 2026, and in the App Store release notes for version 7.0.6 (released October 12, 2026), which describe the closed and open layouts. The app's page on the developer's website has pictures of both on the iPhone Duo.
- Closed
- Open
Sticky Widgets
Tyler Hillsman / 1881 Digital, LLC
Sticky notes as widgets, with a larger library and side-by-side editing on the Duo
Simulator verified: Tyler Hillsman, the developer, in the App Store release notes for version 5.4.0 (released October 13, 2026), which add iPhone Duo support with a larger library and side-by-side editing, and in a submission to FoldHunt on October 17, 2026, with an unframed screenshot of the app in the iPhone Duo simulator in the press kit (stickywidgets.app). The App Store seller is 1881 Digital, LLC; the App Store pictures show ordinary iPhones and iPads.
- Open