Customer Feedback Portal - Ask customers what you should build next
Google Flights - Find cheap flights in seconds, explore destinations on a map, and sign up for fare alerts on Google Flights.
Feedback Fish - Collect feedback & make your customers happy.
Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.
Roadmap - Collision avoidance for projects and people
Eddy Travels for Slack - Flight search for teams in Slack