Collect sign ups with built-in referrals
Launch and integrate your form, collect or import sign ups, reward users for inviting friends, manage them through the CRM and easily send email campaigns to stay connected.
Letterby includes built-in CRM, email campaign tools, and contact management features. Founders can send newsletters, segment audiences with smart audiences, and invite top referrers as beta testers or offer exclusive deals to high-engagement users.
The form builder allows full customization of sign-up pages with brand elements, custom domains, and website embed widgets. Users can remove Letterby branding on Pro plans and design every detail to match their brand identity.
Letterby enables rapid creation of viral waitlist pages with built-in referral mechanics, allowing founders to collect early sign-ups and gauge interest through organic growth loops. Users can customize pages, embed on websites, and track analytics to validate product-market fit with minimal setup time.
Letterby provides API, webhook, and Zapier integration options, allowing users to connect sign-up data and audience insights to external platforms for CRM, analytics, or automation purposes without manual data transfer.
The platform's core referral system lets users climb the waitlist by inviting friends, creating viral loops similar to Robinhood and Clubhouse. Points can be awarded for actions like invitations, event attendance, and questionnaire completion, driving organic audience growth without paid acquisition.