DevDojo - Dev tools and resources for building awesome stuff
Sensor Tower - Sensor Tower is a platform for app store optimization and app industry intelligence.
UX Recipe - Checklist to discover your next UX project tools/techniques
App Annie - App Annie is a marketing analytics tool available for apps of all kinds. With App Annie, you can track sales, traffic, and a variety of other factors pertinent to monitoring an app's trajectory.
UXsniff - Track user behavior on your website and improve conversions with UXsniff: the user experience watchdog that looks out for you.
appfigures - Cross-platform app store analytics for all of your mobile apps.