Fits Duo
Submit your app
All apps

Construction Master Pro Calc

Calculated IndustriesUtilities

View in the App Store
On iPhone Duo

Letterboxed

Construction Master Pro Calc runs in an iPhone-sized window with black bars.

Want Construction Master Pro Calc 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 12.11.22
Build
iOS 26.1 SDK
Latest version
12.11.22, Sep 2, 2026
Status updated

What owners report

No reports from owners yet. Add yours

Version history

  1. Version 12.11.22Letterboxed

    iOS 26.1 SDK

    Checked Oct 26, 2026

Sources

  1. App Store build, version 12.11.22

    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 911