For new well-designed social apps, the ad spend can either be a) mere fractions of the "cost per action" - because each new user invites their friends, or b) irrelevant because people don't use the thing.
Product & Startup Builder
For new well-designed social apps, the ad spend can either be a) mere fractions of the "cost per action" - because each new user invites their friends, or b) irrelevant because people don't use the thing.