growth hacking 8.0 9 min Viral Loop Math: The Coefficient Formula Killing Growth The viral coefficient most startups use is dead wrong. Here's the real formula, the tools to measure it, and how Dropbox hit 3.9x. March 25, 2026
growth hacking 8.0 10 min Viral Loops That Actually Work: The Math Behind Referral Growth Stop guessing on virality. Learn the K-factor formula, real viral coefficient benchmarks, and how Dropbox scaled to 4M users with one referral mechanic. March 22, 2026
