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Fast Clean

MARVELS NETWORK TECHNOLOGY LIMITED.COUtilities

View in the App Store
On iPhone Duo

Letterboxed

Fast Clean runs in an iPhone-sized window with black bars.

Its latest version is built with the iOS 18.2 SDK,[1] which Apple shows letterboxed on the inner display.[2]

How we know
From the app’s build
Checked on
Version v1.0.4
Build
iOS 18.2 SDK
Latest version
v1.0.4, Dec 10, 2025
Status updated

What owners report

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Version history

  1. Version 1.0.4Letterboxed

    iOS 18.2 SDK

    Checked Oct 23, 2026

Sources

  1. App Store build, version v1.0.4

    Built with the iOS 18.2 SDK. Uses none of Apple’s iPhone Duo APIs.

  2. Apple Developer: Prepare your app for iPhone Duo
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