Discover interaction and design similarities and spot the differences between apps in these two categorized directories of mobile app screens.

Mobile UI Patterns

Examples of mobile UI patterns

With topics such as Check-in Screens, Empty Data Sets, Maps, and many more, Mobile UI Patterns, gives you a single row of screens to scroll through. Dig in!

Pttrns

Meanwhile, Pttrns joins the fray with a two column approach highlighting such app categories as Calendars, Friends, Messaging, and more. Take a look!

These are great quick reference tools. And I wish there was a crowd-sourced site like this. I don’t think Pinterest really supports this kind of easy sorting, but that would perhaps be the best option. Can you recommend any other sites like these?