Comparison

Symbols vs Logical Fallacy Memory

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

Head to head
About

Symbols

Learn symbolic logic through interactive exercises and visual study cards. Master rules of inference, evaluate arguments, and translate everyday language into formal logic. Progress through various activities to build and solidify your understanding of logical reasoning.

Highlights
  • Comprehensive Studycards with clear explanations
  • Interactive activities for skill mastery
  • Validity: Evaluate pre-solved arguments
  • Justification: Deduce missing argument steps
  • Inference: Build valid arguments
  • Translation: Convert statements to logical form
Features
Read full description

Learn logic with Symbols, the app that teaches natural deduction and the rules of inference in an intuitive, accessible way. Our unique Studycards feature visual pictographs and interactive, step-by-step exercises that allow you to grasp each rule easily and quickly. Then, challenge yourself with activities specifically designed to practice those rules, building your skills progressively, and cementing them in your memory with every level completed. Why Symbols? Comprehensive Studycards: Learn essential rules like Modus Ponens, Modus Tollens, Disjunctive Syllogism, and many more through clear explanations and examples. Perfect for students and anyone looking to understand formal logic. Engaging Activities for Skill Mastery: Validity: Sharpen your critical thinking by evaluating pre-solved arguments. This unique activity provides the benefits of repetition without the tedium, helping you apply, recognize, and grow familiar with the rules of inference. Justification: Challenge your understanding with puzzle-like scenarios where you deduce missing argument steps. This deepens your comprehension and refines your application of logical rules within complex arguments. Inference: By this stage, the training wheels are off, and the student has to draw on everything they've learned so far. Their task is to mentally build a valid argument from what’s provided—or to recognize that no valid argument can be formed. What would normally be worked out slowly on paper is now done at the speed of thought. Translation: Translation helps students practice turning statements with indicator words and phrases into logical form. These indicator words, commonly found in logic books and courses, give students a sense of how to translate everyday language into formal logic. Translation breaks this process into levels, allowing students to track their progress and earn new scores as they build proficiency. Download Symbols for free and begin your journey into formal logic. Your free access includes the first level of every activity and the Modus Ponens study card, a must-have for getting started. For more advanced content and features, simply use our in-app purchases to continue building your logic skills. Start your journey of mastering the rules of inference now!

About

Logical Fallacy Memory

Master common logical fallacies and enhance your critical thinking skills. This app uses active recall and spaced repetition to help you identify reasoning errors in real-world situations. Track your progress with a personalized mastery map and learn over 60 unique fallacies.

Highlights
  • Active recall testing
  • Spaced repetition learning
  • Personalized mastery map
  • Identify over 60 fallacies
  • Real-world scenario analysis
Features
Read full description

Logical Fallacy Memory app helps you to learn and master common logical fallacies. Level up your critical thinking. Learn to identify common logical pitfalls and transform the way you make decisions, debate, and perceive the world. Key Features: 1. Active Recall Testing: Learn faster by identifying fallacies in real-world scenarios. 2. Science-Based Learning: We use Spaced Repetition to hack your memory, ensuring you never forget the most common reasoning errors. 3. Personalized Mastery Map: A clear dashboard that shows exactly what you know and where you need more practice. 4. More than 60 fallacies available for study. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Symbols4 screens
Logical Fallacy Memory4 screens

Verdict

The call

The clearest difference is rating: Symbols at 4.5 against Logical Fallacy Memory's 1.0. Symbols also leads on ratings volume (8 vs 1) and iOS requirement (12.0 vs 17). Logical Fallacy Memory's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, ads, in-app purchases and monetization model 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. Symbols sells 6 in-app purchases, starting at $3.99 per month and Logical Fallacy Memory sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Symbols holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Symbols has 8 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Symbols ships an update every 6 weeks, Logical Fallacy Memory every 2 weeks. The most recent releases landed on June 1, 2026 and July 23, 2026 respectively.

Scorecard4 real differences · 6 level
Symbols versus Logical Fallacy Memory: the parameters behind the verdict, then further details
ParameterSymbolsLogical Fallacy Memory
PriceFreeFree
Rating4.5 (8 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings8 — better1
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17
Further details — not scored
Size78 MB7 MB
Age rating4+4+
DeveloperMatthew Rayes山 汪

Customer experience

Symbols

All ratings8 ratings
Positive87.5%
Neutral12.5%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Logical Fallacy Memory

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

6 purchases

Symbols

Subscriptions6
  • Monthly Subscription$3.991 Month
  • Weekly subscription3 Days trial$3.997 Days
  • Monthly Subscription$6.991 Month
Show 3 more
  • Three Month Subscription$18.993 Months
  • Yearly Subscription$24.991 Year
  • Annual Subscription$39.991 Year
2 purchases

Logical Fallacy Memory

Subscriptions2
  • All Access (1 Month)$1.991 Month
  • All Access (1 Year)$11.991 Year

Questions

Is Symbols free?
Symbols is free to download, with in-app purchases available.
Is Logical Fallacy Memory free?
Logical Fallacy Memory is free to download, with in-app purchases available.
Which has better reviews, Symbols or Logical Fallacy Memory?
Symbols is rated higher. Symbols averages 4.5 out of 5 from 8 ratings, while Logical Fallacy Memory averages 1.0 from 1 ratings.
Do Symbols or Logical Fallacy Memory have ads?
Neither Symbols nor Logical Fallacy Memory shows ads.
Which is updated more often, Symbols or Logical Fallacy Memory?
Symbols ships an update every 6 weeks, and Logical Fallacy Memory every 2 weeks. Most recently, Symbols was updated on June 1, 2026 and Logical Fallacy Memory on July 23, 2026.

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