Does YouTube work on iPhone Duo?

Probably, but it's not confirmed. YouTube was updated on 27 October 2026 (version 21.43.5), after Apple's iPhone Duo tools came out, but Google 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
Google
Category
Photo & Video
Current version
21.43.5 ยท 27 October 2026
App Store rating
4.7 out of 5 (49,617,990 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

Other Photo & Video apps on iPhone Duo

All apps on iPhone Duo in Japan โ†’

Got an iPhone Duo? How does YouTube look on the inner screen?

No owner report yet for version 21.43.5.

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 YouTube work on iPhone Duo?

Probably, but it's not confirmed. YouTube was updated on 27 October 2026 (version 21.43.5), after Apple's iPhone Duo tools came out, but Google 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 YouTube be adapted to iPhone Duo?

Only Google knows. We check YouTube 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 โ€œUpdated, unconfirmedโ€ until its developer says more.