# iPhone Duo guides

> PassCollect guides about iphone duo.

Canonical: https://lucadevelops.com/blog/tags/iphone-duo/

- [Using PassCollect on iPhone Duo — folded and unfolded layouts](https://lucadevelops.com/blog/passcollect-iphone-duo/index.md): PassCollect adapts its card layout to iPhone Duo, showing a compact two-column grid when folded and a wide three-column view when unfolded.