Does POSTIDENT work on iPhone Duo?
Not yet. POSTIDENT's current version (34.1, 1 October 2026) came out before Apple's iPhone Duo tools, so on the inner screen it opens in an iPhone-size window with black bars. It works, just not full screen.
- On iPhone Duo
- Not yet
- Developer
- Deutsche Post AG
- Category
- Business
- Current version
- 34.1 · 1 October 2026
- Popularity
- #80 in the top charts in Germany
- App Store rating
- 4.8 out of 5 (497,415 ratings)
- Last checked
How we know
Its current version is older than Apple's iPhone Duo tools (5 October 2026): on the inner screen it opens in an iPhone-size window with black bars. See it on the App Store
History on iPhone Duo
- · Not yet (version 34.1)
Other Business apps on iPhone Duo
-
LinkedInLinkedIn Corporation · BusinessUpdated, unconfirmedUpdated 26 October 2026 -
Microsoft TeamsMicrosoft Corporation · BusinessUpdated, unconfirmedUpdated 23 October 2026 -
Indeed Job SearchIndeed Inc. · BusinessUpdated, unconfirmedUpdated 20 October 2026 -
Jump Desktop (RDP, VNC, Fluid)Phase Five Systems · BusinessUpdated, unconfirmedUpdated 20 October 2026 -
Meine AllianzAllianz Deutschland AG · BusinessUpdated, unconfirmedUpdated 22 October 2026 -
Zoom WorkplaceZoom Communications, Inc. · BusinessAdaptedApple's list, 22 October 2026 -
iScannerBPMobile · BusinessUpdated, unconfirmedUpdated 7 October 2026 -
Adobe Acrobat Reader Crear PDFAdobe Inc. · BusinessUpdated, unconfirmedUpdated 16 October 2026
All apps on iPhone Duo in Germany →
Got an iPhone Duo? How does POSTIDENT look on the inner screen?
No owner report yet for version 34.1.
Still looking for the iPhone Duo itself? Restocks sell out within minutes: get an alert the moment one lands near you.
Good to know
Does POSTIDENT work on iPhone Duo?
Not yet. POSTIDENT's current version (34.1, 1 October 2026) came out before Apple's iPhone Duo tools, so on the inner screen it opens in an iPhone-size window with black bars. It works, just not full screen.
Why do some apps have black bars on iPhone Duo?
Because they were built before Apple's iPhone Duo tools. On the inner screen, an app built for an older iOS opens in an iPhone-size window on a black background; one built for iOS 27.0 uses more of it but leaves some space blank; only apps built with the iOS 27.1 SDK, which developers have had since 5 October 2026, use the whole display.
When will POSTIDENT be adapted to iPhone Duo?
Only Deutsche Post AG knows. We check POSTIDENT on the App Store again within about 1 h: this page changes as soon as a new version says it supports iPhone Duo.
Do apps that aren't adapted still work on iPhone Duo?
Yes. Every iPhone app runs on iPhone Duo: one that isn't adapted just doesn't fill the inner screen until its developer updates it.
How we measure
Sources: Apple's list of apps adapted to iPhone Duo (22 October 2026) and each app's App Store record (version, release date, release notes, description). Apple doesn't say which tools an app was built with, so an app stays “Updated, unconfirmed” until its developer says more.