Observed arrival · 2026-09-22
WorksOnDuo: the foldable-phone compatibility ledger
A searchable tracker showing whether popular apps fill, partly fill, or letterbox the inner display of the forthcoming iPhone Duo.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- iPhone Duo buyers and app developers
- Worth noticing
- 593 apps are tracked and refreshed daily, with statuses based on public evidence or owner reports.
Field notes
The tracker models the inner display as three practical states: a phone-sized window with black bars, a partly adapted layout, or an edge-to-edge experience. Its homepage currently lists 593 apps across categories including banking, games, productivity, and AI assistants, while noting that most entries remain unconfirmed before launch. Developers can submit an app for inclusion and receive a badge linking back to the listing.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue