Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
Splash - Anyone can create a Splash event, whether you're a company hosting a single event or an individual hosting a personal event like a birthday or wedding. Get Started for Free. Text goes here. X. Full Event Program.
OwnTracks - Cross-platform location sharing
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.