Oxford Deluxe (InApp)
English Channel, Inc.Education
On iPhone Duo
Letterboxed
Oxford Deluxe (InApp) runs in an iPhone-sized window with black bars.What owners report
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Version history
- Version 18.0Letterboxed
iOS 26.5 SDK
Checked Nov 5, 2026
Sources
- App Store build, version 18.0
Built with the iOS 26.5 SDK. Uses none of Apple’s iPhone Duo APIs.
- Apple Developer: Prepare your app for iPhone Duo