OkTalk
Zapps MobiTravel
On iPhone Duo
Letterboxed
OkTalk runs in an iPhone-sized window with black bars.What owners report
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Version history
- Version 2.65Letterboxed
iOS 15.5 SDK
Checked Nov 5, 2026
Sources
- App Store build, version 2.65
Built with the iOS 15.5 SDK. Uses none of Apple’s iPhone Duo APIs.
- Apple Developer: Prepare your app for iPhone Duo