Comparison

Logical Fallacy Memory vs Signals and Shadows

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

Head to head
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/

About

Signals and Shadows

This journal app helps strategists, designers, and curious individuals capture and analyze observations about the changing world. Document emerging trends, identify fading systems, and visualize their impact to build a personal library of future insights.

Highlights
  • Capture signals of emerging trends
  • Identify fading systems (shadows)
  • Analyze impact and probability
  • Visualize observations on a horizon matrix
  • Backcasting to define future states
  • Synthesize signals into megatrends
  • Privacy-focused, data stays on device
Features
Read full description

Signals & Shadows is a dedicated journal for futures thinking and horizon scanning. It helps you capture, analyze, and synthesize observations about the changing world around you. Whether you are a strategist, designer, or curious observer, this tool allows you to document weak signals of change and spotting the shadows of declining systems. Features: CAPTURE SIGNALS Quickly log observations of emerging trends. Categorize them using the STEEP framework (Social, Technological, Economic, Environmental, Political). IDENTIFY SHADOWS Note the systems and behaviors that are fading away or becoming obsolete. ANALYZE IMPACT Rate the potential impact and probability of your observations. visualize them on a horizon matrix to prioritize what matters. BACKCASTING Define a preferred future state and work backwards. Create step by step milestones to understand the path from tomorrow to today. MEGATRENDS Synthesize multiple signals into larger megatrends. Connect the dots between isolated events to see the bigger picture. PRIVACY FOCUSED Your data stays on your device. Zero tracking or cloud sync ensures your strategic insights remain private. Start building your personal library of future insights today.

Screenshots

Logical Fallacy Memory4 screens
Signals and Shadows4 screens

Verdict

The call

The clearest difference is rating: Signals and Shadows at 5.0 against Logical Fallacy Memory's 1.0. Signals and Shadows also leads on in-app purchases (none vs 2) and iOS requirement (15.1 vs 17). On price, ratings volume, 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. Logical Fallacy Memory sells 2 in-app purchases, starting at $1.99 per month. Signals and Shadows asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Signals and Shadows holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard4 real differences · 5 level
Logical Fallacy Memory versus Signals and Shadows: the parameters behind the verdict, then further details
ParameterLogical Fallacy MemorySignals and Shadows
PriceFreeFree
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Number of ratings11
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS1715.1 — better
Further details — not scored
Size7 MB43 MB
Age rating4+4+
Developer山 汪Matthew Kerr

Customer experience

Logical Fallacy Memory

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

Signals and Shadows

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Logical Fallacy Memory

Subscriptions2
  • All Access (1 Month)$1.991 Month
  • All Access (1 Year)$11.991 Year
None

Signals and Shadows

No in-app purchases

Questions

Is Logical Fallacy Memory free?
Logical Fallacy Memory is free to download, with in-app purchases available.
Is Signals and Shadows free?
Signals and Shadows is free to download, with no in-app purchases.
Which has better reviews, Logical Fallacy Memory or Signals and Shadows?
Signals and Shadows is rated higher. Logical Fallacy Memory averages 1.0 out of 5 from 1 ratings, while Signals and Shadows averages 5.0 from 1 ratings.
Do Logical Fallacy Memory or Signals and Shadows have ads?
Neither Logical Fallacy Memory nor Signals and Shadows shows ads.

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