Does Trello work on iPhone Duo?

Partly. Trello uses more of the inner display, but not all of it. Owners report it fills most of the display.

Is Trello letterboxed on iPhone Duo?

Apps built with the iOS 26 SDK or earlier show black borders around an iPhone-sized window on the inner display; iOS 27 apps resize to fill most of it, and iOS 27.1 apps fill it completely. Current status: Partly fits.

All apps

Trello

Name: Trello: Daily Task Tracker
Author: Trello, Inc.

Trello, Inc.Productivity

View in the App Store

On iPhone Duo

Partly fits

Trello uses most of the inner screen, but not all of it.

Owners report it fills most of the display.

How we know: Reported by owners
Latest version: 2026.21, Oct 13, 2026
Status updated: Oct 25, 2026

What owners report

1 report from people using iPhone Duo

Fits: 0
Partly fits: 1
Letterboxed: 0
Has issues: 0
Doesn’t work: 0

Partly fits

What owners report

Other Productivity apps