Language lessons, with the words on one side of the Duo and the lesson on the other
Does Learn languages with LENGO work on iPhone Duo?
Yes, the developer says so: the release notes for version 1.27.1 say LENGO is optimized for iPhone Duo, and an App Store event shows words beside the lesson, folded or open.
- App Store confirmedThe developer, in the App Store release notes for version 1.27.1, which say the app is optimized for iPhone Duo. A current App Store event, not tied to a version, describes the words on one side and the lesson on the other, folded or open.
Adapted for the fold
We're waiting on details of exactly what Learn languages with LENGO changes for the fold. Are you the developer? Tell us.
About Learn languages with LENGO
LENGO teaches vocabulary and grammar through lessons and exercises. Version 1.27.1 is optimized for iPhone Duo, the release notes say, and an App Store event (not tied to a version) describes the words on one side of the fold and the lesson on the other, folded or open.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· App Store page reviewed
App Store confirmed · iphone-duo
The App Store release notes for version 1.27.1 (released October 14, 2026) mention iPhone Duo: "The latest LENGO update is crafted for iOS 27, with a refined Liquid Glass experience designed to feel right at home on iPhone 18 Pro, iPhone 18 Pro Max, and the all-new iPhone Duo."
App version: 1.27.1.
Store text only: we haven't seen the app running, and the store page doesn't show how each pose is used.
View reviewed evidence ↗· Developer statement reviewed
Developer claimed · iphone-duo
Read the Duo statement in the release notes for version 1.27.1 and the App Store event, not tied to a version, that describes words beside the lesson; looked at a sample of the App Store artwork.
App version: 1.27.1.
The sampled artwork does not show the app running on a Duo. No build was installed or tested, and no pose was checked.
View reviewed evidence ↗
Related guides
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Every iPhone app opens on iPhone Duo, but only updated ones fill the inner display. What an app looks like before its developer adapts it, how to tell which are ready, and which popular apps have said so.
Is this your app?
Add the badge to your site or press kit. It links back to this page, where fans can upvote you.
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Sources: LENGO on the App Store (apps.apple.com) · LENGO in Apple's app lookup (itunes.apple.com)
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Launch partner: Named by Apple in its Newsroom article of October 22, 2026, on apps optimized for iPhone Duo. The App Store release notes for version 13.1 (released October 14, 2026) say Sky Guide is optimized for iPhone Duo and that the sky view widens as the phone unfolds.
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Simulator verified: Serpenti Sei Japan, the developer, in a submission to FoldHunt on October 9, 2026, saying the iPhone Duo update will be on the App Store in time for the October 23 launch, with a screen recording of it in the iPhone Duo simulator (screen.studio). The developer says the layout was also tried on a real iPhone Duo at a workshop at Apple's Japan headquarters. The App Store seller is Serpenti Sei Japan LLC (id 881697245). The release notes for version 1.36 (released October 19, 2026) say Nihongo adapts as you fold and unfold iPhone Duo, making the most of both displays.
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