Does Bill Tracker Pro work on iPhone Duo?

Yes. Bill Tracker Pro is updated for iPhone Duo and uses the full inner display. Its latest version is built with the iOS 27.2 SDK and uses Apple’s iPhone Duo APIs.

Is Bill Tracker Pro letterboxed on iPhone Duo?

No. Bill Tracker Pro fills the inner display.

All apps

Bill Tracker Pro

Name: Bill Tracker Pro: Budget Saver
Author: Bill Tracker Pro, Inc.

Bill Tracker Pro, Inc.Finance

View in the App Store

On iPhone Duo

Fits

Bill Tracker Pro fills the inner screen and adapts when you fold.

Its latest version is built with the iOS 27.2 SDK and uses Apple’s iPhone Duo APIs.[1]

How we know: From the app’s build
Checked on: Version 4.3.2
Build: iOS 27.2 SDK
uses Apple’s iPhone Duo APIs
Latest version: 4.3.2, Oct 27, 2026
Status updated: Oct 28, 2026

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Version history

Version 4.3.2Fits
iOS 27.2 SDK
Checked Oct 28, 2026

Sources

App Store build, version 4.3.2
Built with the iOS 27.2 SDK. Uses UIHingeInteraction, UIView.reservedRegions and SwiftUI’s onHingeChange.