Does Bikemap work on iPhone Duo?

Yes. Bikemap is updated for iPhone Duo and uses the full inner display. Its latest version is built with the iOS 27.1 SDK and uses Apple’s iPhone Duo APIs.

Is Bikemap letterboxed on iPhone Duo?

No. Bikemap fills the inner display.

All apps

Bikemap

Name: Bikemap: Bicycle Tracker & GPS
Author: Bikemap GmbH

Bikemap GmbHMaps

View in the App Store

On iPhone Duo

Fits

Bikemap fills the inner screen and adapts when you fold.

Its latest version is built with the iOS 27.1 SDK and uses Apple’s iPhone Duo APIs.[1]

How we know: From the app’s build
Checked on: Version 32.2.1
Build: iOS 27.1 SDK
uses Apple’s iPhone Duo APIs
Latest version: 32.2.1, Oct 20, 2026
Status updated: Oct 28, 2026

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Version history

Version 32.2.1Fits
iOS 27.1 SDK
Checked Oct 28, 2026

Sources

App Store build, version 32.2.1
Built with the iOS 27.1 SDK. Uses SwiftUI’s reservedRegions and toolbarVerticalEdge.
App Store: Bikemap 32.2.1 release notes