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Rhetoriq
Fallacy detection for any real-world text
Rhetoriq analyzes arguments in messy real-world text: Reddit comments, headlines, heated replies, where something valid and something fallacious often share a sentence. Select or paste text and it flags the weak passage, names the fallacy from a fixed set of 16 most common fallacies. It notes what's strong, and scores the whole thing 0-100. Also checks your own reply before you send it. Built to analyze the argument as a whole, not just hunt for labels.
I've spent the past months building Rhetoriq, and I'm launching it here today.
Most argument-analysis tools work fine on neat textbook examples. I wanted something for actual messy text: a Reddit comment, a heated reply, a headline, where something valid and something fallacious often sit in the same sentence.
You paste, speak, or select text anywhere on your phone. That last one is the part I'm proudest of: select text in WhatsApp, a browser, an email, anything, and Rhetoriq shows up right in the selection menu. Tap it, and the analysis appears over your screen without opening the app or switching context.
It flags the weak passage, names the fallacy, notes what's strong, and scores the whole argument 0–100. Useful for checking your own reply before you hit send, too.
Example: "Solar is cheaper than coal, so anyone against it is just pushing oil propaganda." → strong point on the cost claim, ad hominem on the rest.
It's built around a fixed set of 16 commonly used fallacies plus manipulation techniques like false balance, loaded language, and manufactured consensus. For each text it pulls out strong points, weak points, and any fallacies or rhetorical tricks it finds. Each tied to a specific passage rather than a generic label slapped on the whole thing. A false positive still happens from time to time. The goal was to beat generic "explain this argument" AI prompting, not to be infallible.
No subscription, you buy credits and they don't expire.
https://play.google.com/store/ap...
(Web app for bigger screens: https://rhetoriq.nl/app?lang=en)
About Rhetoriq on Product Hunt
“ Fallacy detection for any real-world text”
Rhetoriq was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #160 on the daily leaderboard. Rhetoriq analyzes arguments in messy real-world text: Reddit comments, headlines, heated replies, where something valid and something fallacious often share a sentence. Select or paste text and it flags the weak passage, names the fallacy from a fixed set of 16 most common fallacies. It notes what's strong, and scores the whole thing 0-100. Also checks your own reply before you send it. Built to analyze the argument as a whole, not just hunt for labels.
On the analytics side, Rhetoriq competes within Android, Productivity, Education and Artificial Intelligence — topics that collectively have 1.3M followers on Product Hunt. The dashboard above tracks how Rhetoriq performed against the three products that launched closest to it on the same day.
Who hunted Rhetoriq?
Rhetoriq was hunted by App Dev. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Rhetoriq including community comment highlights and product details, visit the product overview.
App Dev