Mikrolo - Free Digital Marketing Strategy Builder!
Sensor Tower - Sensor Tower is a platform for app store optimization and app industry intelligence.
ADYOUNEED - Marketing platform to create and optimize ads
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.
Keywords Everywhere - Free browser add-on for keyword volume, CPC & competition
appfigures - Cross-platform app store analytics for all of your mobile apps.