Apple is adding a "Made for iPhone Duo" badge to the App Store, marking apps and games optimized for its new foldable.
The badge will appear across apps and games that work with the Duo's extra screen space. Apple did not include an image of what it looks like. It did point to examples, which are its own showcase picks. Netflix will fill the inner display with shows and movies while running its feed of short-form clips on the outer screen. Amazon's Prime Video is also among the apps Apple highlighted.
The Netflix example is the useful one. It treats the two screens as separate jobs instead of one bigger canvas, which is a higher bar than stretching a layout to fit. Whether the badge requires that kind of work, or just a layout that does not break, is not something Apple spelled out.
That gap matters because foldables have a history here. On Android, support for odd screen shapes has been uneven for years, and buyers of those phones often find out app by app which ones behave. A badge in the store moves that discovery from trial and error to the product page.
It also works as a nudge to developers. A visible label turns optimization into a ranking of sorts, and few studios with a big audience will want to go without it on a new device. The open question is what an unbadged app looks like on the Duo, and how many of them there will be at launch.