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Your apps.
Ready for iPhone Duo?

Find out what fills the screen. And what doesn’t.

Real apps. Public evidence. Updated daily. How we check

The apps you use every day.

Popular in the US App Store

All apps

More screen. Ready to go.

Confirmed full screen or built for Duo

See all ready apps

A clearer picture of app support.

35 of the top 100 US apps are confirmed ready. Every other verdict is shown below, including what we don’t know yet.

Read the readiness report
  • Built for Duo25
  • Full screen10
  • Partly adapted16
  • Black bars49
  • Not confirmed yet0

US App Store · Refreshed daily

Find your kind of app.

One screen. Different experiences.

An app can open without using all of the inner display. Here’s what our status labels mean.

  • Illustration: app fills the inner display with a two-pane layout

    Built for Duo

    A layout designed for the larger inner display.

  • Illustration: app fills most of the inner display with empty space at the sides

    Partly adapted

    More space to work with, with some gaps remaining.

  • Illustration: app runs in a phone-sized window with black bars on both sides

    Black bars

    A phone-sized window within the inner display.

Layout illustrations. Check each app’s page for its evidence.

A little understanding goes a long way.

All guides

Help the next person find their answer.

Have an iPhone Duo? Share what you see. Building for it? Send us the evidence. Every submission is reviewed.

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