UX Archive Animated - iOS apps animated user flows
UserTesting.com - Usability testing has never been easier. Get videos of real people speaking their thoughts as they use websites, mobile apps, prototypes and more!
UI Patterns - Level up with interactive mobile design patterns
Instabug - The top apps in the world rely on Instabug for beta testing, user engagement and crash reporting.
Page Flows - User flow design inspiration for mobile & desktop
Userbrain - Easy, fast, and affordable user testing for websites and prototypes.