FIRST - Post a date, pick a winner & meet up.
Sensor Tower - Sensor Tower is a platform for app store optimization and app industry intelligence.
Marketing Teams and Slack - A handbook for marketing teams to make the most out of Slack
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.
Startup Marketing Playbook - The how-to guide for new B2B marketing leaders
appfigures - Cross-platform app store analytics for all of your mobile apps.