Does PostNL work on iPhone Duo?
Probably, but it's not confirmed. PostNL was updated on 19 October 2026 (version 7.2.1), after Apple's iPhone Duo tools came out, but PostNL Holding B.V. doesn't mention iPhone Duo. Apps built with Apple's standard components fill the inner screen on their own once rebuilt.
- On iPhone Duo
- Updated, unconfirmed
- Developer
- PostNL Holding B.V.
- Category
- Lifestyle
- Current version
- 7.2.1 · 19 October 2026
- App Store rating
- 4.5 out of 5 (748,003 ratings)
- Last checked
How we know
Updated since Apple's iPhone Duo tools came out (5 October 2026), but the developer doesn't mention the Duo. Apps built with Apple's standard components fill the inner screen on their own. See it on the App Store
History on iPhone Duo
- · Updated, unconfirmed (version 7.2.1)
Other Lifestyle apps on iPhone Duo
-
TinderTinder LLC · LifestyleUpdated, unconfirmedUpdated 27 October 2026 -
iLiturgiaCascubo Software · LifestyleUpdated, unconfirmedUpdated 22 October 2026 -
Inner CircleCircle Imperium B.V. · LifestyleUpdated, unconfirmedUpdated 27 October 2026 -
Bumble Dating AppBumble Holding Limited · LifestyleUpdated, unconfirmedUpdated 26 October 2026 -
PinterestPinterest, Inc. · LifestyleUpdated, unconfirmedUpdated 21 October 2026 -
RayaRaya App Inc · LifestyleUpdated, unconfirmedUpdated 23 October 2026 -
happnHAPPN SAS · LifestyleUpdated, unconfirmedUpdated 21 October 2026 -
MelkahSHAKHSIYYAH AL-QAID FOR ESTABLISHMENT TRADING · LifestyleUpdated, unconfirmedUpdated 20 October 2026
All apps on iPhone Duo in Brazil →
Got an iPhone Duo? How does PostNL look on the inner screen?
No owner report yet for version 7.2.1.
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 PostNL work on iPhone Duo?
Probably, but it's not confirmed. PostNL was updated on 19 October 2026 (version 7.2.1), after Apple's iPhone Duo tools came out, but PostNL Holding B.V. doesn't mention iPhone Duo. Apps built with Apple's standard components fill the inner screen on their own once rebuilt.
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 PostNL be adapted to iPhone Duo?
Only PostNL Holding B.V. knows. We check PostNL 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.