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.
Pre-Launch Widget Templates - 100+ widgets for your pre-launch campaigns
AppFollow - AppFollow is an integrated solution that makes monitoring, analyzing, and elevating your app's reputation easy.
GoodUI Fastforward - Lift your conversion rate with repeatedly AB tested patterns
appfigures - Cross-platform app store analytics for all of your mobile apps.
UI Temple - Curated collection of the best web page designs