Comparison

Fallacy vs SaberLibre

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

SaberLibre

Features
Read full description

Saber Libre es la app de preparación para el examen Saber 11 de Educadavid, en alianza con la Universidad Libre, creada para los estudiantes de sus cursos preicfes. PRACTICA UN POCO CADA DÍA • Una meta diaria corta: 3, 5 o 7 preguntas, unos minutos. • Preguntas de las cinco pruebas: Lectura Crítica, Matemáticas, Ciencias Naturales, Sociales y Ciudadanas, e Inglés. • Organizadas por las competencias oficiales que evalúa el examen. APRENDE DE CADA ERROR • Después de cada respuesta ves la explicación, no solo si acertaste. • Cuando fallas, marcas por qué: no lo sabía, me confundí, leí mal o me faltó tiempo. • Repaso inteligente: las preguntas que fallaste vuelven en el momento justo para que no se te olviden. COMO EN EL EXAMEN • Hoja de borrador: activa el lápiz para subrayar el texto y hacer cuentas, como en el cuadernillo. • Gráficas y tablas como las del examen. MIRA CÓMO VAS • Tu racha de días, tu precisión por materia y tu avance semana a semana. • Ranking con los compañeros de tu grupo. • Tu profesor ve el avance del curso para saber en qué reforzar. ACCESO Saber Libre no tiene registro abierto: la universidad inscribe a cada estudiante, que entra con su número de documento y un código de acceso personal. Saber Libre es un material de estudio independiente. No está afiliado al ICFES ni lo representa; las preguntas son originales y siguen el formato y las competencias públicas del examen.

Screenshots

Fallacy4 screens
SaberLibre4 screens

Verdict

The call

The clearest difference is in-app purchases: SaberLibre at none against Fallacy's 6. 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 6 in-app purchases, starting at $6.99 per 7 days. SaberLibre asks for nothing beyond the download.

UpkeepUpdate frequency

Fallacy ships an update fortnightly, SaberLibre every 2 weeks. The most recent releases landed on November 12, 2026 and October 26, 2026 respectively.

Scorecard1 real difference · 9 level
Fallacy versus SaberLibre: the parameters behind the verdict, then further details
ParameterFallacySaberLibre
PriceFreeFree
Rating4.5 (58 ratings) — better—
Positive reviews77.8% of reviews—
Number of ratings58 — better—
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size134 MB27 MB
Age rating4+4+
DeveloperVERTEX STUDIOS LTDARTURO Molina Correa

In-app purchases

6 purchases

Fallacy

Subscriptions5
  • Weekly Premium Access$6.997 Days
  • Monthly Subscription Fallacy7 Days trial$12.991 Month
  • Monthly Premium Access1 Month trial$12.991 Month
Show 2 more
  • Yearly Premium Access7 Days trial$49.991 Year
  • Yearly Subscription Fallacy7 Days trial$59.991 Year
One-time1
  • Lifetime Access - Premium$79.99
None

SaberLibre

No in-app purchases

Questions

Is Fallacy free?
Fallacy is free to download, with in-app purchases available.
Is SaberLibre free?
SaberLibre is free to download, with no in-app purchases.
Do Fallacy or SaberLibre have ads?
Neither Fallacy nor SaberLibre shows ads.
Which is updated more often, Fallacy or SaberLibre?
Fallacy ships an update fortnightly, and SaberLibre every 2 weeks. Most recently, Fallacy was updated on November 12, 2026 and SaberLibre on October 26, 2026.

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