FAQ

What is iPhone Duo?

iPhone Duo is Apple’s foldable iPhone, available from 23 October 2026. It has an outer display and a larger inner display, so apps can use two screen sizes and postures.

What does “Made for iPhone Duo” mean?

It is a badge Apple shows on the App Store page of apps whose developers have optimized them for iPhone Duo and submitted iPhone Duo screenshots.

How can I tell if an app is optimized?

Search for it on this site, or open its App Store page on iPhone Duo and look for the badge. Apps Apple names or features in its “Great Apps on iPhone Duo” collections are also listed here as optimized.

What does “Not verified” mean?

We could not confirm the app is optimized. It does not mean the app is broken: apps that are not optimized still run on iPhone Duo.

How often is the data updated?

Popular apps are re-checked several times a day, the rest daily, and apps you search for are queued for verification.

Is this site official?

No. It is an independent project, not affiliated with or endorsed by Apple.