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Webull

Webull Technologies Pte. Ltd.Finance

Not available on the App Store in the United States.

On iPhone Duo

Letterboxed

Webull runs in an iPhone-sized window with black bars.

Want Webull to fill the inner display? Be the first to vote.

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 11.3.5
Build
iOS 18.4 SDK
Latest version
11.3.5, Sep 5, 2025
Status updated

What owners report

No owner reports yet. Add yours

Version history

  1. Version 11.3.5Letterboxed

    iOS 18.4 SDK

    Checked Nov 5, 2026

Sources

  1. App Store build, version 11.3.5

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

  2. Apple Developer: Prepare your app for iPhone Duo
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