GrowSurf
growsurf.com
Referral and affiliate program software for B2C and product-led tech companies.
diff ~/p/kevin-yun ~/p/nick-velkovski
Products, revenue & stack compared side by side.
Bootstrapped co-founder of GrowSurf referral software; writes SaaS Kevin; two exits
Co-founder and CEO of HeyReach, bootstrapped past $19M ARR, and co-founder of Loopster
Both Kevin Yun and Nick Velkovski are bootstrapped. They overlap in SaaS Founders and Marketing & SEO Tools. Kevin is based in Chicago, United States, Nick in San Francisco, United States. Kevin started in 2017 and Nick in 2021. Kevin Yun has 2 products listed on IndieMakerList vs Nick Velkovski's 3. Kevin has sold 1 product. On revenue, Kevin self-reports $24K MRR (as of 2021) and Nick $19M+ ARR (as of 2026-10). On X, Kevin has about 2.8K followers and Nick about 3K.
Revenue figures are self-reported by each maker and not audited; dates and scope differ. Highlighted categories are shared by both.
heyreach.io
LinkedIn outreach automation for agencies, sales teams and GTM engineers, with unlimited sender accounts for one fixed cost.
loopster.ai
GTM orchestration platform built by HeyReach: build lists, enrich contacts and launch outreach plays for one flat fee.
Reddit direct-message outreach tool, Velkovski's first startup; shut down before the pivot to HeyReach.
No tools in common in their publicly listed stacks. See the indie maker tech stack.
No stack shared publicly.
No stack shared publicly.
No courses, books or communities listed.
Kevin Yun self-reports $24K MRR (as of 2021) and Nick Velkovski self-reports $19M+ ARR (as of 2026-10). By these self-reported figures, Nick Velkovski's reported monthly revenue is higher. Figures are unaudited and may cover different periods or businesses, so treat them as rough indicators.
Kevin Yun has 2 products listed (GrowSurf and ComplyDog); Nick Velkovski has 3 products listed (HeyReach, Loopster and Howitzer).
Kevin Yun: Chicago, United States. Nick Velkovski: San Francisco, United States.
Kevin Yun started in 2017 (9 years indie); Nick Velkovski started in 2021 (5 years indie).
Yes, both are listed as bootstrapped founders on IndieMakerList.
Read the full story, timeline and links on Kevin Yun's profile and Nick Velkovski's profile.