Sites and apps similar to Signupster include Mobilizon, which is free and open source. Other options are Bumble, Luma Events, Meetup and Gancio. There's no shortage of Event Ticketing Apps like Signupster, with more than 25 alternatives for Android, iPhone, iPad, self-hosting and Windows.
Attendize is an open-source event ticketing and event management application built using the Laravel PHP framework. Attendize was created to offer event organisers a simple solution for managing general admission events.
United States
Let's Try Sports is a website for finding sports activities in your local area: tennis, badminton, table tennis, football, golf... you name it!.
DownToMeet is a platform to organize, find, and attend group events. If you're down to meet people in your area and find new friends, you belong here.
Join a growing community of aspiring people looking to get matched, chat, work together, and build incredible things.
Patook is about meeting the people who are near you and who share similar interests, as well as connecting local communities together.
When a big group event requires a little more than just "showing up", Guestboard keeps your group informed, connected and organized.
United States
Far or Near™ is a privacy-oriented social network that helps you connect with others who share your interests and hobbies. Discover content, find activities and make new friends.
Attendize is an Open-source ticket selling and event management platform and is everything you need for a successful event. Attendize has a wide array of features aimed at making organising events as effortless as possible.
A free alternative to Meetup & Eventbrite - helping people to build communities and find what's happening around them, and connect with like-minded individuals through shared interests.
United Kingdom
Find, meet and rate people with common skills and interests. Community-driven rating system. Variety of skill levels to match your own. Absolutely FREE, no ads!.
Self-service ticketing site and app that lets organisers create events, sell tickets, and receive payments online.
Denmark
EU
