<p>Built around one of the biggest complaints in the AI companion market: poor long-term memory. The app solves this pain point to encourage repeat use and improve retention. It makes money through subscriptions and in-app purchases. It supports 21 languages. <b>All traffic is 100% from ASO</b>; no ads or marketing were done.</p><p><b>Key highlights:</b></p><ul> <li>Monthly revenue: $470</li> <li>Monthly profit: Varies but profit margin is 75-90%</li> </ul> <p><b>Team</b></p><p>Managed by a solo dev. Minimal to no work needed to manage this app.</p><p><b>Tech Stack</b></p><p>Swift, Swift UI, Supabase, Resemble AI for voice generation, Gemini as LLM.</p><p><b>Marketing and growth</b></p><p>Purely from ASO.</p><p><b>Costs:</b></p><p>Gemini API: less than $0.0001 per message.</p><p>Resemble AI: $8 monthly for 4 custom voices. And apx $0.0045 per message.</p><p>Supabase: Free tier.</p><p><b>Business model</b></p><ul> <li>Subscriptions:</li> </ul> <p>Weekly: $7.99 - 500 audio message each week</p><p>Monthly: $19.99 - 2000 audio messages each month</p><ul> <li>In App Purchases:</li> </ul> <p>500 audio messages: $7.99</p><p>(Prices vary by region)</p><p><b>Startup assets</b></p><ul> <li>iOS Source code</li> <li>App, Supabase and Resemble AI projects transfer to the buyers account.</li> </ul> <p><b>Summary</b></p><p>It's an autopilot with no work or marketing needed.</p><p>✅ $998 TTM revenue</p><p>✅ 19 customers</p><p>✅ Business model: SaaS+IAP</p><p>✅ Built with Swift, SwiftUI, Supabase</p>