Fits Duo
Submit your app
All apps

弹琴吧-钢琴吉他学习平台

Beijing Qule Technology Co., Ltd.Music

View in the App Store
On iPhone Duo

Letterboxed

弹琴吧-钢琴吉他学习平台 runs in an iPhone-sized window with black bars.

Want 弹琴吧-钢琴吉他学习平台 to fill the inner display? Be the first to ask.

Its latest version is built with the iOS 26.1 SDK,[1] which Apple shows letterboxed on the inner display.[2]

How we know
From the app’s build
Checked on
Version 26.0920
Build
iOS 26.1 SDK
Latest version
26.0920, Sep 21, 2026
Status updated

What owners report

No reports from owners yet. Add yours

Version history

  1. Version 26.0920Letterboxed

    iOS 26.1 SDK

    Checked Oct 29, 2026

Sources

  1. App Store build, version 26.0920

    Built with the iOS 26.1 SDK. Uses none of Apple’s iPhone Duo APIs.

  2. Apple Developer: Prepare your app for iPhone Duo
See all 257