You shipped an app with AI. Now you need people who pay for it. FirstUser gets you there organically on X, LinkedIn, Instagram, YouTube and Reddit, with no ad spend. Two ways to use it: • Agency: send your link for a free review. A person on our team uses your app and tells you within 24 hours whether we can grow it. • AI agent, from $10/mo: paste your link and get the viral content format for your app, with the real posts behind it and their numbers.