A solo developer shares how Wellspoken, an AI communication coaching app, grew from 400 users to hundreds of thousands of downloads in six months. The post covers two main acquisition channels: organic App Store optimization (ASO) and a user-generated content (UGC) campaign. It details how A/B testing paywalls, copy, and pricing drove subscription conversions, and how timing review prompts at positive moments boosted ratings. On the technical side, EAS Build, EAS Submit, and Expo's OTA updates enabled rapid iteration and production fixes without ever opening Xcode or Android Studio. Key lessons include treating growth as a portfolio of compounding wins, the importance of funnel improvement alongside traffic growth, and how OTA updates change the risk calculus of shipping fast.