Does Yomu work on iPhone Duo?

Yes. Yomu has been updated for iPhone Duo and uses the full inner display. Its latest version is built with the iOS 27.2 SDK and uses Apple’s iPhone Duo APIs.

Is Yomu letterboxed on iPhone Duo?

No. Yomu fills the full inner display.

All apps

Yomu

Name: Yomu: Manga & Webtoon Reader
Author: MOBILE ALCHEMY LTD

MOBILE ALCHEMY LTDBooks

View in the App Store

On iPhone Duo

Fits

Yomu fills the inner screen and adapts when you fold.

Its latest version is built with the iOS 27.2 SDK and uses Apple’s iPhone Duo APIs.[1]

How we know: From the app’s build
Checked on: Version 4.11
Build: iOS 27.2 SDK
uses Apple’s iPhone Duo APIs
Latest version: 4.11, Nov 3, 2026
Status updated: Nov 5, 2026

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Version history

Version 4.11Fits
iOS 27.2 SDK
Checked Nov 5, 2026

Sources

App Store build, version 4.11
Built with the iOS 27.2 SDK. Uses SwiftUI’s reservedRegions.