Fits Duo
Submit your app

iPhone Duo is out. Developers are updating their apps, so statuses may change over the next few days. Report how an app fits

All apps

Steam Chat

ValveSocial

View in the App Store
On iPhone Duo

Letterboxed

Steam Chat runs in an iPhone-sized window with black bars.

Its latest version is built with the iOS 14.3 SDK,[1] which Apple shows letterboxed on the inner display.[2]

How we know
From the app’s build
Checked on
Version 1.0.15
Build
iOS 14.3 SDK
Latest version
1.0.15, Jan 6, 2021
Status updated

What owners report

No reports from owners yet. Add yours

Version history

  1. Version 1.0.15Letterboxed

    iOS 14.3 SDK

    Checked Oct 23, 2026

Sources

  1. App Store build, version 1.0.15

    Built with the iOS 14.3 SDK. Uses none of Apple’s iPhone Duo APIs.

  2. Apple Developer: Prepare your app for iPhone Duo
See all 96