3D Brain vs Psychology Dictionary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Brain
Explore a 3D model of the human brain, rotating and zooming to examine 29 interactive structures. Learn about the function of each region, the effects of injury, and its role in mental illness. Detailed information includes case studies and research links.
- 3D brain model
- Interactive structures
- Region functions
- Brain injury effects
- Mental illness involvement
- Case studies
- Research links
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Use your touch screen to rotate and zoom around 29 interactive structures. Discover how each brain region functions, what happens when it is injured, and how it is involved in mental illness. Each detailed structure comes with information on functions, disorders, brain damage, case studies, and links to modern research. Created by Vivid Apps and AXS Biomedical Animation Studio for the Cold Spring Harbor Laboratory DNA Learning Center. 3D Brain was produced for the Genes to Cognition (G2C) Online website funded by the Dana Foundation and Hewlett Foundation.
Psychology Dictionary
Explore over 18,000 psychological terms with in-depth explanations and a pronunciation guide. This app serves as a comprehensive resource for students, professionals, and anyone interested in mental health and self-improvement.
- Extensive database of 18,000+ terms
- In-depth explanations
- Bookmark and favorite terms
- Pronunciation guide
- Regularly updated content
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Unlock the secrets of the human mind with Psychology Dictionary, your comprehensive guide to over 18,000 psychological terms. Delve into the fascinating world of mental health, therapy, and self-improvement, all at your fingertips. Expand your mental horizons and gain a deeper understanding of the human psyche. Download Psychology Dictionary today and embark on your journey towards self-discovery and mental wellness. KEY FEATURES EXTENSIVE DATABASE Access a vast collection of 18,000+ up-to-date psychological terms, from A to Z. Whether you're a student, professional, or simply curious, our app covers it all. IN-DEPTH EXPLANATIONS Dive deep into each term with detailed definitions and explanations. Gain insights into the complex concepts of psychology and mental health. BOOKMARK & FAVORITE Create your own personalized library by bookmarking your most-used terms for quick reference. Save your favorites to revisit later. PRONOUNCIATION GUIDE Improve your vocabulary with our pronunciation guide. Speak confidently about psychological terms with accurate pronounciations. STAY UPDATED Our database is regularly updated to ensure you have the latest information in the ever-evolving field of psychology. WHY CHOOSE PSYCHOLOGY DICTIONARY? Enhance Your Knowledge: Whether you're a psychology student or just curious about the mind, our app provides a wealth of information to satisfy your curiosity. Perfect for Professionals: Psychologists, therapists, counselors, and educators can rely on our app as a handy reference tool in their practice. Self-Improvement: Explore the world of self-help, self-discovery, and personal growth through a better understanding of psychological concepts. https://apa.nefarius.co/privacy-policy https://apa.nefarius.co/terms-of-use
Screenshots
Verdict
The clearest difference is rating: Psychology Dictionary at 4.5 against 3D Brain's 3.6. Psychology Dictionary also leads on update cadence (every 4 weeks vs every 2 months) and review sentiment (86% vs 75%). 3D Brain's advantage is iOS requirement (6.0 vs 17.0). On price, ratings volume, ads and in-app purchases 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
Both are free to download. 3D Brain sells 1 one-off in-app purchase and Psychology Dictionary sells 8 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Psychology Dictionary holds the better App Store score, 4.5 against 3.6. Both are backed by a comparable volume of ratings — 146 and 420 respectively. Written reviews point the same way: 75% of 3D Brain's written reviews are positive against 86% of Psychology Dictionary's.
3D Brain ships an update every 2 months, Psychology Dictionary every 4 weeks. The most recent releases landed on November 9, 2026 and November 3, 2026 respectively.
| Parameter | 3D Brain | Psychology Dictionary |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (146 ratings) | 4.5 (420 ratings) — better |
| Positive reviews | 74.6% of reviews | 85.7% of reviews — better |
| Number of ratings | 146 | 420 — better |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 6.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 70 MB | 54 MB |
| Age rating | 12+ | 4+ |
| Developer | Cold Spring Harbor Laboratory | Nefarius Apps |
Customer experience
3D Brain
Psychology Dictionary
User reviews
3D Brain
From 146 App Store ratingsWhat we love
- 🧠 Informative brain visualizations
- 👍 Helpful for psychology/neuroscience students
- 🔍 Detailed information and case studies
- 🤓 Excellent learning tool
Room to improve
- 🐛 App crashes after updates
- 🤯 Upgrade causes app to stop working
- 📱 Compatibility issues with newer devices
- 🔍 Limited brain structures covered
Psychology Dictionary
From 420 App Store ratingsWhat we love
- 📚 Comprehensive psychology terms
- 🤓 Useful for life and exams
- 👍 User-friendly interface
- 🌟 Great resource for students
- 💡 Detailed definitions
Room to improve
- 💸 Expensive subscription
- 📺 Intrusive video ads
- 🙄 Ads interrupt typing
- ❌ Rate us function not working
Bugs and requests
3D Brain
Reported bugs
4 issues- App crashes on launch after upgrade
- Purchased premium version not functioning
- Laggy performance and blurry images
- No way to exit app other than force closing
Requested features
4 requests- More brain structures and regions
- Improved 3D navigation and controls
- Ability to label and annotate the brain
- Quizzes and interactive learning features
Psychology Dictionary
Reported bugs
4 issues- Typo in definition of 'abuse' (foormal)
- App closes when looking up terms
- Video ads pop out while typing
- Rate us function doesn't work
Requested features
2 requests- Add small or key examples for each word
- Add horizontal view support for iPad (now implemented)
In-app purchases
3D Brain
- 3D Brain HQ$0.99
Psychology Dictionary
- Premium$4.997 Days
- Premium3 Days trial$4.997 Days
- Premium weekly with discount7 Days trial$9.997 Days
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- Premium3 Days trial$9.991 Month
- Premium$9.991 Month
- Premium1 Month trial$14.991 Month
- Premium$34.991 Year
- Premium6 Months trial$74.991 Year
Questions
Is 3D Brain free?
Is Psychology Dictionary free?
Which has better reviews, 3D Brain or Psychology Dictionary?
Do 3D Brain or Psychology Dictionary have ads?
Which is updated more often, 3D Brain or Psychology Dictionary?
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