Does Banktivity work on iPhone Duo?

Yes. Banktivity is updated for iPhone Duo and uses the full inner display. Its latest version is built with the iOS 27.1 SDK and uses Apple’s iPhone Duo APIs.

Is Banktivity letterboxed on iPhone Duo?

No. Banktivity fills the inner display.

All apps

Banktivity

Name: Banktivity: Budget & Finances
Author: IGG Software, Inc

IGG Software, IncFinance

View in the App Store

On iPhone Duo

Fits

Banktivity fills the inner screen and adapts when you fold.

Its latest version is built with the iOS 27.1 SDK and uses Apple’s iPhone Duo APIs.[1]

How we know: From the app’s build
Checked on: Version 10.2.1
Build: iOS 27.1 SDK
uses Apple’s iPhone Duo APIs
Latest version: 10.2.1, Oct 27, 2026
Status updated: Oct 29, 2026

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Version history

Version 10.2.1Fits
iOS 27.1 SDK
Checked Oct 29, 2026

Sources

App Store build, version 10.2.1
Built with the iOS 27.1 SDK. Uses UIHingeInteraction and UIViewReservedRegionKind.
App Store: Banktivity 10.2.1 release notes