# Fallacy vs Fallacy Quest

The clearest difference is in-app purchases: Fallacy Quest at none against Fallacy's 6. Fallacy's advantage is ads (none vs shown) and device support (3 vs 1). On price and update cadence there is nothing between them.

Both are free to download. Fallacy sells 6 in-app purchases, starting at $6.99 per 7 days. Fallacy Quest asks for nothing beyond the download.

Fallacy ships an update fortnightly, Fallacy Quest every 8 days. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Fallacy | Fallacy Quest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (58 ratings)](https://appshunter.io/ios/app/fallacy-brain-training-logic/id6743923575/reviews)** | — |
| Number of ratings | **58** | — |
| Positive reviews | 76.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 95 MB | 8 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [VERTEX STUDIOS LTD](https://appshunter.io/developer/1805080787) | [Paul Thornton](https://appshunter.io/developer/1203471660) |

## What reviewers say

### Fallacy

[App page](https://appshunter.io/ios/app/fallacy-brain-training-logic/id6743923575)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $6.99 | per 7 days |
| Monthly Subscription Fallacy | $12.99 | per month |
| Monthly Premium Access | $12.99 | per month |
| Yearly Premium Access | $49.99 | per year |
| Yearly Subscription Fallacy | $59.99 | per year |
| Lifetime Access - Premium | $79.99 | one-time |


### Fallacy Quest

[App page](https://appshunter.io/ios/app/fallacy-quest/id6801763407)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Fallacy free?

Fallacy is free to download, with in-app purchases available.

### Is Fallacy Quest free?

Fallacy Quest is free to download, with no in-app purchases.

### Do Fallacy or Fallacy Quest have ads?

Fallacy Quest shows ads; Fallacy does not.

### Which is updated more often, Fallacy or Fallacy Quest?

Fallacy ships an update fortnightly, and Fallacy Quest every 8 days. Most recently, Fallacy was updated on October 12, 2026 and Fallacy Quest on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*