About

iPhone Duo’s inner screen is wonderful when apps fill it, and much less so when they sit in a small window with black bars on both sides. This site answers one question for any app: is it ready?

Other lists track the apps that announce Duo support. We work out an answer for every app, including the thousands that haven’t said anything, and show the evidence behind each one. Read how we know.

The site is independent and not affiliated with Apple. It runs on free infrastructure and uses only public App Store data.

If the site helps you, you can buy me a coffee on Ko-fi. It keeps the project going.