Double - Tinder for double dates
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Google Sign-In - Google Sign-In is a secure authentication system that enables users to sign in with their Google accounts.
Zoho Backstage - Plan, run, and analyze your event— all from one place
Facebook Login - Facebook Login is a secure, fast and convenient way for people to log into your app or website.
Meetup for iOS and Android - Discover groups that are all about the things you love