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.
Apple App Analytics - Apple's very own iTunes Connect App Analytics
AppFollow - AppFollow is an integrated solution that makes monitoring, analyzing, and elevating your app's reputation easy.
Poltio - Create and share questions, get answers.
appfigures - Cross-platform app store analytics for all of your mobile apps.
My Motiff - Allowing you to stay connected in realtime