Is it Duo-ready?

E6B Aviation Calculator

Aviation Mobile Apps, LLC.

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Does E6B Aviation Calculator work on iPhone Duo?

Not yet. The latest version of E6B Aviation Calculator we've seen on the App Store (2.4.1, released February 5, 2019) came out before Apple started accepting iOS 27.1 SDK builds on October 5, 2026, so it isn't built for the full iPhone Duo display. Depending on how it was built, it either fills most of the inner display or opens in a smaller window with empty space around it.

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By position

Outer screenNo data
Inner screenNo data
Half-folded (tabletop)No data
Keeps your place when foldingNo data

From recent reports. “Didn't try” answers aren't counted.

App Store updates

All apps
Version 2.4.1

Checked every few hours. Only builds made with the iOS 27.1 SDK, accepted since October 5, 2026, can use the whole inner display. Owner reports confirm whether an update did.

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How does E6B Aviation Calculator run on your Duo?

Screenshots

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Positions you tried

Outer screen
Inner screen
Half-folded (tabletop)
Keeps your place when folding

Optional. It helps people who use the phone a certain way.

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Badge for developers

iPhone Duo status of E6B Aviation Calculator
Markdown
[![iPhone Duo status](https://isitduoready.com/app/e6b-aviation-calculator/badge.svg)](https://isitduoready.com/app/e6b-aviation-calculator)
HTML
<a href="https://isitduoready.com/app/e6b-aviation-calculator"><img src="https://isitduoready.com/app/e6b-aviation-calculator/badge.svg" alt="iPhone Duo status of E6B Aviation Calculator" height="20"></a>

Shows E6B Aviation Calculator's current status and updates by itself. Add it to your README, website or press kit.