Comparison

Fallacy vs Propaganda Detector

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Fallacy

This app teaches logical reasoning and critical thinking skills by turning the identification of logical fallacies and cognitive biases into a game. It offers structured brain training with daily exercises and timed challenges, using real-world scenarios and media to build applied intelligence.

Highlights
  • Identify 30+ logical fallacies
  • Recognize 20+ cognitive biases
  • Daily brain exercises
  • Timed reasoning challenges
  • Debate Mode with real-world arguments
  • Progressive difficulty levels
Features
Read full description

Do you trust your own thinking? Most people unknowingly fall for the same logical fallacies and cognitive biases every day — in conversations, on social media, in the news, and in their own decisions. Fallacy is the first brain training app built to sharpen one critical skill: your ability to think clearly, spot flawed reasoning, and win any argument with logic. PEOPLE YOU MEET — OUTSMART REAL-LIFE CHARACTERS Ever tried reasoning with a WhatsApp Uncle who forwards conspiracy theories? Or an overconfident AI that sounds smart but gets everything wrong? In People You Meet, you go head-to-head with characters inspired by people in your life. Spot their logical fallacies, identify their cognitive biases, plan your comeback, and win arguments using critical thinking instead of volume. Every character uses different reasoning tricks — this brain training mode teaches you more about logic and flawed thinking than any textbook. MASTER 30+ LOGICAL FALLACIES From Ad Hominem and Straw Man to the Slippery Slope and Appeal to Authority — master every major logical fallacy through real-world brain training scenarios. Each logical fallacy includes clear explanations, everyday examples, and progressive reasoning challenges that build genuine critical thinking. Whether you encounter these logical fallacies in the news, at work, or in a debate, you will spot them instantly after training. RECOGNIZE 20+ COGNITIVE BIASES Confirmation bias. Anchoring. The Dunning-Kruger effect. These invisible cognitive biases shape your decisions every day. Fallacy is the only brain training game that teaches you to detect cognitive biases in yourself and others through hands-on reasoning exercises. Understanding your cognitive biases is the foundation of stronger critical thinking and better decisions. DEBATE MODE — SHARPEN YOUR REASONING Step into real debates on real topics. Read opposing arguments, spot the logical fallacies hidden inside, and build powerful reasoning skills. Debate Mode is the ultimate brain training for critical thinking — improve how you argue, evaluate claims, and win debates using pure logic. Every debate round strengthens your reasoning and sharpens your ability to spot cognitive biases under pressure. CHALLENGE MODE — SPOT BIAS IN REAL NEWS Scroll through headlines and posts from real-world news sources. Your mission: spot the flawed reasoning and logical fallacies before time runs out. Challenge Mode is brain training for the real world — building the critical thinking and media literacy skills you need to detect cognitive biases in the news you consume daily. PRECISION IQ SCORING & PROGRESS TRACKING Your reasoning ability is measured with a precision IQ score that updates as you train. Track your 30, 60, and 90-day progress. Watch your critical thinking improve with clear insights into your cognitive growth. Brain training works best when you see results — Fallacy shows you exactly how your reasoning improves over time. DAILY BRAIN EXERCISES & 5 DIFFICULTY LEVELS Build a daily brain training habit with fresh logic puzzles and reasoning challenges every day. Maintain your streak and strengthen your mental fitness. Five difficulty levels take you from beginner to expert reasoning — keeping brain training challenging no matter your skill level. WHY FALLACY IS THE SMARTEST BRAIN TRAINING APP Other brain games train memory or math. Fallacy is the only brain training app focused on logical fallacies, cognitive biases, and real-world critical thinking. From planning a comeback against flawed reasoning to winning debates with logic — this is brain training that makes you smarter in conversations, arguments, and everyday life. Download Fallacy for free. Start brain training and master the critical thinking skills that actually matter. https://www.spotfallacy.com/privacy-policy https://www.spotfallacy.com/terms-and-conditions

About

Propaganda Detector

Features
Read full description

200 real propaganda messages, split into rounds of ten. Answer, see where you were off, and read what technique was used on you. HOW IT WORKS Every card is a short message. You are asked one question about it — is this propaganda, which technique is used, which emotion is being targeted, what is the goal. You answer, and the right option lights up green while the wrong ones turn red. Then the card opens up. WHAT EVERY CARD EXPLAINS Level — which of the four skills this card tested. Emotion — which feeling the message aims at: fear, nostalgia, pride, shame, hatred. Framing — the actual device: false dilemma, whataboutism, group demonization, appeal to authority, golden past, and 17 more. Explanation — why it works on people who are not stupid. ROUNDS AND YOUR PROFILE The deck is split into rounds of ten cards. After each one you get your accuracy for that round and a star for the deck. Your answers build a cognitive profile across four dimensions — propaganda recognition, manipulation technique, emotional trigger, and goal — so you can see which layer you read well and which one slips past you. FOUR DIFFICULTY LEVELS Cards build up gradually. Early ones are blunt. Later ones are the kind you would scroll past without a second thought. THREE LANGUAGES English, Ukrainian and Russian — interface and every card. Switch inside the app, independent of your system language. PRIVACY No account. No backend. No analytics, no tracking, no data collection of any kind. Your progress stays on your device. The app works offline. PREMIUM One-time purchase, no subscription. Unlocks the full deck across all difficulty levels, the complete cognitive profile and detailed analytics by category.

Screenshots

Fallacy4 screens
Propaganda Detector4 screens

Verdict

The call

The clearest difference is in-app purchases: Propaganda Detector at none against Fallacy's 4. Fallacy's advantage is iOS requirement (15.1 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fallacy sells 4 in-app purchases, starting at $6.99 per 7 days. Propaganda Detector asks for nothing beyond the download.

UpkeepUpdate frequency

Fallacy ships an update fortnightly, Propaganda Detector every 2 weeks. Both last shipped on September 23, 2026.

Scorecard2 real differences · 8 level
Fallacy versus Propaganda Detector: the parameters behind the verdict, then further details
ParameterFallacyPropaganda Detector
PriceFreeFree
Rating4.5 (57 ratings) — better—
Positive reviews76.0% of reviews—
Number of ratings57 — better—
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.0
Further details — not scored
Size95 MB3 MB
Age rating4+12+
DeveloperVERTEX STUDIOS LTDAnatolii Ostapenko

In-app purchases

4 purchases

Fallacy

Subscriptions3
  • Weekly Premium Access$6.997 Days
  • Monthly Premium Access1 Month trial$12.991 Month
  • Yearly Premium Access7 Days trial$39.991 Year
One-time1
  • Lifetime Access - Premium$79.99
None

Propaganda Detector

No in-app purchases

Questions

Is Fallacy free?
Fallacy is free to download, with in-app purchases available.
Is Propaganda Detector free?
Propaganda Detector is free to download, with no in-app purchases.
Do Fallacy or Propaganda Detector have ads?
Neither Fallacy nor Propaganda Detector shows ads.
Which is updated more often, Fallacy or Propaganda Detector?
Fallacy ships an update fortnightly, and Propaganda Detector every 2 weeks. Most recently, Fallacy was updated on September 23, 2026 and Propaganda Detector on September 23, 2026.

Other comparisons