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Waitlist API - Quick and easy waitlist with built in referral.
Envisage - Inject contextual help on your site. Point and click style.
LaunchList - Create waitlist with referral for your product launch
Moonshot - Discover trending cryptocurrencies priced at less than a penny
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.
Product Fit - Measure product/market fit in app with your users.