First Launch
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OneStar

See why users love or leave any app or game, straight from its review

Built in United StatesMarketing and SalesLaunched Oct 9, 2026Launched this week
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About

What it doesOneStar reads the reviews of any app or game on the App Store, Google Play and Steam and turns them into one report: what users complain about, what they praise, what they ask for, and who says they’re leaving. Run it on your own app, or on a competitor you’re trying to beat. How it worksEvery review gets the same set of questions from Jev, a classification model from TypeSafe. Is there a complaint? Which category? Does the reviewer say they’re leaving? What are they asking for? Each answer comes with a probability, and plain code does the counting. Every number in a report opens the reviews behind it, so you can check any figure yourself. When Jev isn’t confident about an answer, that review goes into an “unsure” bucket that stays visible on the report.