Referrals beat ads. Every single time.

I've run paid and organic at three startups and nothing comes close to a good referral loop on CAC or retention. Referred users trust faster, churn less, and refer more. The trick is making the reward feel generous to BOTH sides and removing every gram of friction from sharing. The referral bonus here is exactly the kind of two-sided incentive that compounds. If referral isn't built into your core product loop, you're leaving your cheapest growth on the table.