Founder Playbook
Launching
“Our biggest channel for growth even to send them to make them start using Windows is through our big mobile user base. We'll spend a lot of time on product marketing within mobile.”
Grow Across Platforms by Cross-Selling to Your Existing Mobile Base — Don't Start Cold
When Super Unlimited launched Windows, they skipped cold-start acquisition entirely and marketed the new platform inside the app to existing mobile subscribers. The logic: a billion-download install base of privacy-conscious users is the most qualified audience for a VPN on any new platform. Tanuj applies the same logic to eSIM — rather than buying airport ads, they target cohorts of known travelers within the existing app. Cross-platform growth as in-product upsell is their structural advantage.
T
Tanuj Chatterjee
Super Unlimited VPN#1 VPN app on the App Store · 1B+ cumulative downloads · 1M+ organic downloads/day · profitable, no paid marketing
Sub Club by RevenueCat
How the World's #1 VPN App Reached 1 Billion Downloads· 10:40