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Apple illustration showing Detail on the inner display of an iPhone Duo — Apple press illustration

How-to guide Oct 24, 2026

Apps that make the iPhone Duo fold useful

Look for a reason to open, prop up or close the device. An effective layout can keep two useful things visible, leave the device stable on a table, or move information to the display facing the right person. These are sourced examples, not our hands-on findings.

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Apple illustration showing the Fantastical calendar on an unfolded iPhone Duo — Apple press illustration

How-to guide Oct 24, 2026

Which apps are ready for iPhone Duo?

There is no single yes/no definition of Duo-ready. An app may run, adapt to the wider display, or add pose-specific behavior. This tracker separates the evidence for each claim and keeps an announced enhancement distinct from an available release.

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How we test

Clear methods, dated sources, and honest limitations. See what supports each recommendation.

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Who this is for

Mac, iPhone and iPad users who want to find better apps and get things done.

Sources and relationships disclosed. No paid rankings.