Lucid vs Mental Models
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Lucid
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Do you think clearly? No one does. Your brain runs on shortcuts. Biases. Fallacies. Patterns you can't see. They shape every decision you make. Β Lucid names them. 169 of them. One per day. Four tracks. No filler. Blind Spots, cognitive biasesΒ Undone, logical fallaciesΒ Razor, mental models Wired, psychological phenomena
Mental Models
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The sharpest thinkers don't just work harder, they think differently. Mind Models teaches you the mental frameworks used by the world's best decision-makers, investors, and leaders, one lesson at a time. Whether you want to make better decisions, solve hard problems, lead more effectively, or just think more clearly, Mind Models builds a personalized curriculum around your goal and grows with you. 50+ Mental Models Curated and Explained. From First Principles and Inversion to the Pareto Principle and Sunk Cost Fallacy, each lesson breaks down a powerful thinking tool with clear explanations and real-world examples that make it actually stick. Personalized to Your Goal Tell Mind Models what you're working on. We sequence your entire learning path around it, no two paths are the same. Built Around How Humans Actually Learn Spaced repetition resurfaces lessons at exactly the right intervals Daily streaks keep you consistent and motivated One focused model per session. No overwhelm, just fun and easy progress
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Verdict
The clearest difference is in-app purchases: Lucid at none against Mental Models's 1. Mental Models's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.6). On price and ads there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Mental Models sells 1 one-off in-app purchase. Lucid asks for nothing beyond the download.
| Parameter | Lucid | Mental Models |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone | iPhone, iPad, iPod β better |
| Requires iOS | 18.6 | 15.1 β better |
| Further details β not scored | ||
| Size | 3 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Saad Nasser | Christos Tsavas |
In-app purchases
Lucid
No in-app purchases
Mental Models
- Full Access$6.99
Questions
Is Lucid free?
Is Mental Models free?
Do Lucid or Mental Models have ads?
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