Overhear watches X, Reddit, LinkedIn, YouTube, Hacker News and the web for your brand, competitors and keywords, even when nobody tags you. AI sorts each mention into complaints, questions, praise and people asking what to buy, and emails you the urgent ones. You set the pace per source, from hourly to daily. No subscription: buy prepaid credits from $10, one scan costs 1-3 credits, credits never expire. 1,000 free credits to start. Built in Rust, self-hostable.