Slack - A messaging app for teams who see through the Earth!
App Review Times - Find out the average app review times for iOS & Mac apps
9mCollab - Collaborate (efficiently) Conclude (fast) Contribute (in the knowledge base)
App Reviews Dashboard by Appfigures - Monitor, analyze, and reply to app reviews in one place
Mattermost - Mattermost is an open source alternative to Slack.
PitchWall - Browse new startups, and submit your mobile app/games startup's beta page here.