Rhetoriq: Win every argument
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About this app
Analyze arguments with AI and spot fallacies in seconds. Select text in your browser, email, or another app, tap "Analyze with Rhetoriq," and instantly see how strong the argument is, which fallacies it contains, and the best counterargument. In practically any language.
★ SELECT TEXT IN ANY APP
Analyze without opening the app. Select text, tap Rhetoriq in the selection menu, and the analysis appears over your screen. Also works via the share menu, the widget on your home screen, and directly from your clipboard.
★ POWER SCORE FROM 0 TO 100
One number that weighs strong points, weak points, and detected fallacies against each other. This way, you immediately see how solid an argument truly is.
★ SPOT FALLACIES AND MANIPULATION
Rhetoriq highlights which passage contains the error and names the type: ad hominem, straw man, false dilemma, circular reasoning, and many more fallacies and manipulation techniques. No vague judgment, as the quote is included.
★ ANALYZE AN ENTIRE DEBATE, NOT JUST ONE ARGUMENT
Receive a counter-response? Paste or speak it in, and Rhetoriq analyzes the next turn in the same thread. You see per turn whether the score rises or falls, and which fallacies your opponent keeps repeating.
★ COUNTERARGUMENT IN YOUR TONE
Choose from six tones: professional, assertive, de-escalating, informal, witty, or clear. For Reddit, Facebook, X, or a forum, there’s a separate mode that respects the character limit. Select a sentence to rephrase just that part.
★ CHECK YOUR OWN TEXT
Analyze what you’re about to send before you hit send: score, fallacies, and the counterarguments you can expect. Tap a counterargument, and your response already addresses it.
★ ANY INPUT, ANY LANGUAGE
Text, a link to an article, a voice recording, or a photo. Rhetoriq reads it all and analyzes practically any language you input, from Dutch and English to Turkish, Arabic, or Japanese.
★ ENCYCLOPEDIA, QUIZ, AND PRACTICE
Look up any fallacy in the built-in encyclopedia, with explanations, examples, and how often you’ve encountered it. Sharpen your critical thinking in the Fallacy Quiz and in Refutation, where you choose the response that truly dismantles the fallacy.
★ SAVE AND EXPORT
Analyses and favorite responses remain searchable in your history. Export any analysis as PDF or Markdown. Log in, and your history, quiz results, and badges sync across all your devices.
★ ALSO ON DESKTOP
Prefer a bigger screen? Head to rhetoriq.nl/app, fully synced with the app.
★ WHO IS RHETORIQ FOR
Work
Assess a proposal or email for weak points and walk into a meeting with a well-founded counterargument.
Social media
Follow a discussion turn by turn and spot the fallacy immediately, without getting dragged into a back-and-forth.
Study and debate
Analyze an article, essay, or statement for strengths and weaknesses before building on it.
News and politics
Check the rhetoric and manipulation in what you read or hear in the news or online articles.
★ NO SUBSCRIPTION, PAY FOR WHAT YOU USE
You start with 15 free credits, then purchase credits without a subscription, and allocate them yourself across analyses, responses, quizzes, and practice sessions:
Starter: 50 credits for €2.49
Value: 150 credits for €4.99 (~33% discount)
Power: 400 credits for €9.99 (~50% discount)
Credits never expire, and there’s never automatic billing. ≈ €0.025–0.05 per credit.
1 credit = 1 analysis, 1 generated reply, 1 quiz or practice round, 1 text recognition from a photo, 1 rephrasing, 1 audio transcription, or 1 improvement of your own text.
PRIVACY
By default, we don’t permanently store anything on our server. Your text, audio, and photos are only sent to AI services to process your request and are never used to train AI models. Synchronization is something you enable yourself and can turn off whenever you want. Note: analyses and responses require an internet connection. No AI is infallible; use your own judgment.
★ SELECT TEXT IN ANY APP
Analyze without opening the app. Select text, tap Rhetoriq in the selection menu, and the analysis appears over your screen. Also works via the share menu, the widget on your home screen, and directly from your clipboard.
★ POWER SCORE FROM 0 TO 100
One number that weighs strong points, weak points, and detected fallacies against each other. This way, you immediately see how solid an argument truly is.
★ SPOT FALLACIES AND MANIPULATION
Rhetoriq highlights which passage contains the error and names the type: ad hominem, straw man, false dilemma, circular reasoning, and many more fallacies and manipulation techniques. No vague judgment, as the quote is included.
★ ANALYZE AN ENTIRE DEBATE, NOT JUST ONE ARGUMENT
Receive a counter-response? Paste or speak it in, and Rhetoriq analyzes the next turn in the same thread. You see per turn whether the score rises or falls, and which fallacies your opponent keeps repeating.
★ COUNTERARGUMENT IN YOUR TONE
Choose from six tones: professional, assertive, de-escalating, informal, witty, or clear. For Reddit, Facebook, X, or a forum, there’s a separate mode that respects the character limit. Select a sentence to rephrase just that part.
★ CHECK YOUR OWN TEXT
Analyze what you’re about to send before you hit send: score, fallacies, and the counterarguments you can expect. Tap a counterargument, and your response already addresses it.
★ ANY INPUT, ANY LANGUAGE
Text, a link to an article, a voice recording, or a photo. Rhetoriq reads it all and analyzes practically any language you input, from Dutch and English to Turkish, Arabic, or Japanese.
★ ENCYCLOPEDIA, QUIZ, AND PRACTICE
Look up any fallacy in the built-in encyclopedia, with explanations, examples, and how often you’ve encountered it. Sharpen your critical thinking in the Fallacy Quiz and in Refutation, where you choose the response that truly dismantles the fallacy.
★ SAVE AND EXPORT
Analyses and favorite responses remain searchable in your history. Export any analysis as PDF or Markdown. Log in, and your history, quiz results, and badges sync across all your devices.
★ ALSO ON DESKTOP
Prefer a bigger screen? Head to rhetoriq.nl/app, fully synced with the app.
★ WHO IS RHETORIQ FOR
Work
Assess a proposal or email for weak points and walk into a meeting with a well-founded counterargument.
Social media
Follow a discussion turn by turn and spot the fallacy immediately, without getting dragged into a back-and-forth.
Study and debate
Analyze an article, essay, or statement for strengths and weaknesses before building on it.
News and politics
Check the rhetoric and manipulation in what you read or hear in the news or online articles.
★ NO SUBSCRIPTION, PAY FOR WHAT YOU USE
You start with 15 free credits, then purchase credits without a subscription, and allocate them yourself across analyses, responses, quizzes, and practice sessions:
Starter: 50 credits for €2.49
Value: 150 credits for €4.99 (~33% discount)
Power: 400 credits for €9.99 (~50% discount)
Credits never expire, and there’s never automatic billing. ≈ €0.025–0.05 per credit.
1 credit = 1 analysis, 1 generated reply, 1 quiz or practice round, 1 text recognition from a photo, 1 rephrasing, 1 audio transcription, or 1 improvement of your own text.
PRIVACY
By default, we don’t permanently store anything on our server. Your text, audio, and photos are only sent to AI services to process your request and are never used to train AI models. Synchronization is something you enable yourself and can turn off whenever you want. Note: analyses and responses require an internet connection. No AI is infallible; use your own judgment.
Fallacy detector & argument analyzer: debate practice, critical thinking with AI
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
What’s new
New: automatically proceed after email verification.
New: see which tones you have already used.
New: tap the "i" for credit costs per action.
Fix: OCR rejoins text lines again.
Fix: selecting response tone fails less often.
Fix: answers no longer stop mid-sentence.
Fix: credit purchase error messages in your language.
Fix: quotes/counterarguments scale properly.
Fix: history sync could get stuck.
Fix: analyses fail less frequently.
Bug fixes and improvements.
Everyone
Learn moreApp support
About the developer
Martijn S. Verharen
appdev020@proton.me
Gloriantstraat 8H
1055 CT Amsterdam
Netherlands
