Snaptivity - Real-time photo sharing with the world nearby
Waitlist API - Quick and easy waitlist with built in referral.
Chromatron - Puzzle game series of laser-light-mirror reflections.
LaunchList - Create waitlist with referral for your product launch
Quantum Game - Browser-based puzzle game of quantum mechanics.
Waitlisty.io - Build excitement for your product by embedding a simple form into your website. Signups will receive a referral code to share with their friends. The more codes they share, the more they climb your waitlist.