Does Stylebook work on iPhone Duo?
Not yet. Stylebook's current version (10.1, 15 June 2025) 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
- left brain / right brain, LLC
- Category
- Lifestyle
- Current version
- 10.1 · 15 June 2025
- App Store rating
- 4.7 out of 5 (8,868 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 10.1)
Other Lifestyle apps on iPhone Duo
-
GoWishOnskeskyen ApS · LifestyleUpdated, unconfirmedUpdated 28 October 2026 -
TinderTinder LLC · LifestyleUpdated, unconfirmedUpdated 27 October 2026 -
BoonSchibsted Media AS · LifestyleUpdated, unconfirmedUpdated 27 October 2026 -
iBoxeniBoxen Infrastruktur Sverige AB · LifestyleUpdated, unconfirmedUpdated 21 October 2026 -
PostNordPostNord Group AB · LifestyleUpdated, unconfirmedUpdated 21 October 2026 -
HingeHinge, Inc. · LifestyleUpdated, unconfirmedUpdated 26 October 2026 -
InstaboxInstabox AB · LifestyleUpdated, unconfirmedUpdated 27 October 2026 -
Mitt DHLDHL Freight · LifestyleNot yetLast update 13 March 2026
All apps on iPhone Duo in Sweden →
Got an iPhone Duo? How does Stylebook look on the inner screen?
No owner report yet for version 10.1.
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Good to know
Does Stylebook work on iPhone Duo?
Not yet. Stylebook's current version (10.1, 15 June 2025) 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 Stylebook be adapted to iPhone Duo?
Only left brain / right brain, LLC knows. We check Stylebook 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.