Unstar reads the 1-3 star reviews of any app on App Store or Google Play, then uses AI to cluster complaints into real themes you can act on: crashes, performance, paywall confusion, login issues, missing features. Get an AI-drafted reply in professional, friendly, or apologetic tone. Track competitor complaints. Set monitoring alerts that fire when negative volume spikes after a release. Browse leaderboards of the most-complained-about apps in 26 categories and 18 countries.