Fits Duo
Submit your app
All apps

普通話正讀學生版

The Commercial Press (H.K.) Ltd.Education

View in the App Store
On iPhone Duo

Letterboxed

普通話正讀學生版 runs in an iPhone-sized window with black bars.

Want 普通話正讀學生版 to fill the inner display? Be the first to ask.

Its latest version is built with the iOS 18.4 SDK,[1] which Apple shows letterboxed on the inner display.[2]

How we know
From the app’s build
Checked on
Version 3.1.3
Build
iOS 18.4 SDK
Latest version
3.1.3, Mar 24, 2026
Status updated

What owners report

No reports from owners yet. Add yours

Version history

  1. Version 3.1.3Letterboxed

    iOS 18.4 SDK

    Checked Oct 29, 2026

Sources

  1. App Store build, version 3.1.3

    Built with the iOS 18.4 SDK. Uses none of Apple’s iPhone Duo APIs.

  2. Apple Developer: Prepare your app for iPhone Duo
See all 555