Lucid vs Data Quality Basics
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
Data Quality Basics
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Data Quality Basics is an independent study app for learners who want to build reliable knowledge through focused practice. It is designed for beginners, analysts, engineers, students, and professionals reviewing core ideas before interviews, projects, or exams. Practice across four topic categories: Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. The app includes 160 questions, and every question comes with an explanation so you can understand the reasoning behind each answer. Key features: - FSRS spaced-repetition intervals for smarter review - Weak-point heatmap to spot topics that need attention - Daily challenge for consistent study habits - Mock exams for timed practice - Offline practice with no login required - Explanations for every question Practice offline, no login required. Independent study app for Data Quality Basics practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners.
Screenshots
Verdict
The clearest difference is device support: Data Quality Basics at 3 against Lucid's 1. Data Quality Basics also leads on iOS requirement (15.1 vs 18.6). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Lucid | Data Quality Basics |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod β better |
| Requires iOS | 18.6 | 15.1 β better |
| Further details β not scored | ||
| Size | 3 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Saad Nasser | AFTW LLC |
In-app purchases
Lucid
No in-app purchases
Data Quality Basics
No in-app purchases
Questions
Is Lucid free?
Is Data Quality Basics free?
Do Lucid or Data Quality Basics have ads?
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