XCalSync - Automatically copy events between your calendars.
Sporteventus for iOS - The worldwide search engine for sporting events and tickets
Social - Social let’s you plan almost anything with your connections and keeps track of it for you.
Jukely - Go to hundreds of concerts for one monthly fee 💃
Evounce - Easy and fast event planning platform
TicketHarbor - The safer Craigslist for P2P ticket exchanges