Slack Surveys by Standuply - A simple, powerful bot for recurring surveys on Slack 📝
Best Referral Programs - A curated directory of startup referral programs
BlockSurvey - Privacy-focused surveys, polls & forms
Rewardful - All-in-One Affiliate Management Software for SaaS
Boolean - Send single question yes/no surveys
Landing Pages by Viral Loops - Easily create a landing page for your referral campaign ✌️