Does LINE work on iPhone Duo?
Probably, but it's not confirmed. LINE was updated on 13 October 2026 (version 26.16.0), after Apple's iPhone Duo tools came out, but LINE Corporation 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
- LINE Corporation
- Category
- Social Networking
- Current version
- 26.16.0 · 13 October 2026
- Popularity
- #3 in the top charts in Japan
- App Store rating
- 3 out of 5 (322 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 26.16.0)
Other Social Networking apps on iPhone Duo
-
setlognew chat · Social NetworkingUpdated, unconfirmedUpdated 24 October 2026 -
Bump（旧Zenly）amo · Social NetworkingUpdated, unconfirmedUpdated 27 October 2026 -
ThreadsInstagram, Inc. · Social NetworkingUpdated, unconfirmedUpdated 26 October 2026 -
マッチングアプリ Pairs(ペアーズ) 出会い・恋活・婚活eureka,Inc. · Social NetworkingUpdated, unconfirmedUpdated 26 October 2026 -
マッチングアプリ with(ウィズ)with, Inc. · Social NetworkingUpdated, unconfirmedUpdated 19 October 2026 -
マッチングアプリ タップルTapple, Inc. · Social NetworkingUpdated, unconfirmedUpdated 26 October 2026 -
Rakuten LinkRakuten Group, Inc. · Social NetworkingNot yetLast update 3 September 2026 -
Google MeetGoogle · Social NetworkingUpdated, unconfirmedUpdated 26 October 2026
All apps on iPhone Duo in Japan →
Got an iPhone Duo? How does LINE look on the inner screen?
No owner report yet for version 26.16.0.
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 LINE work on iPhone Duo?
Probably, but it's not confirmed. LINE was updated on 13 October 2026 (version 26.16.0), after Apple's iPhone Duo tools came out, but LINE Corporation 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 LINE be adapted to iPhone Duo?
Only LINE Corporation knows. We check LINE 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.