IMAIOS e vs Osmosis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IMAIOS e
This comprehensive human anatomy atlas offers over 26,000 medical images, including various views and illustrations. It allows users to explore anatomical structures with interactive features and multiple language options. A free preview is available before subscribing to the full, continuously updated atlas.
- 26,000+ medical and anatomical images
- Axial, coronal, sagittal views
- Radiography and angiography images
- Dissection pictures and illustrations
- Interactive labeling and search
- 12 language options
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IMAIOS e-Anatomy is an atlas of human anatomy for physicians, radiologists, medical students and radiology technicians. Get a sneak peek at more than 26 000 medical and anatomical images for free before subscribing to our detailed atlas of human anatomy. e-Anatomy is based on the award-winning IMAIOS e-Anatomy online atlas. Carry with you the most complete reference of human anatomy, wherever you go, on your mobile device or tablet. e-Anatomy has over 26 000 images containing series of images in axial, coronal and sagittal views as well as radiography, angiography, dissection pictures, anatomical charts and illustrations. All medical images were carefully labeled, more than 967 000 labels available in 12 languages including the Latin Terminologia Anatomica. (More details on: https://www.imaios.com/en/e-Anatomy) Features: - Scroll through image sets by dragging your finger - Zoom in and out - Tap labels to display anatomical structures - Select anatomical labels by category - Easily locate anatomical structures thanks to the index search - Multiple screen orientations - Switch languages at the touch of a button The subscription also gives you access to e-Anatomy on IMAIOS website. e-Anatomy is an atlas of anatomy continuously being improved: updates and new module are part of the subscription! Additional downloads are required for full use of the application. The medical information on this application is provided as a tool and reference for use by licensed medical professionals, competent healthcare professionals and no others, it does not and should not be construed as any form of medical diagnosis or professional medical advice on any matter. About module activation. IMAIOS e-Anatomy has three methods of activation for our different users: 1) IMAIOS members who have access provided by their university or library, may use their user account to enjoy full access to all modules. However, an internet connection is periodically required to verify their user account. 2) Users who have purchased the modules in previous versions of IMAIOS e-Anatomy can use the ""Restore"" feature to activate all previously purchased content. You will not be charged again and the content available by the time of your purchase is permanently accessible offline. 3) New users are invited to subscribe to e-Anatomy. All modules and features will be active for a limited period of time. Subscriptions will be automatically renewed so that they can enjoy continuous access to e-Anatomy. Additional auto-renewable subscription Information: - Subscription automatically renews unless auto-renew is turned off at least 24 hours prior to the end of the current period. - Subscriptions and auto-renewals may be turned off by going to the user's account settings on the App Store after purchase. - No cancellation of the current subscription is allowed during the active subscription period. The screenshots are part of the full e-Anatomy application with all modules enabled. Privacy Policy and Terms of Use - https://www.imaios.com/en/privacy-policy - https://www.imaios.com/en/conditions-of-access-and-use"
Osmosis
This app helps medical students learn complex concepts faster and retain more information. It offers animated videos, flashcards, notes, and board-style questions to prepare for exams and build clinical skills.
- Animated medical videos
- Spaced repetition flashcards
- Board-style practice questions
- Downloadable notes and videos
- Clinical decision-making trees
- Cross-platform syncing
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Struggling to understand medical concepts or prepare for the USMLE? Osmosis is the medical exam study app designed to help med students learn medicine faster, improve information retention and pass medical board exams with flying colours. Trusted by 8,000,000+ medical, nursing, PA, pharmacy and dental students, this medical learning app turns downtime into productive study time with an expansive library of medical videos, flashcards, quizzes, exam-style questions and more. Instead of memorizing isolated facts, Osmosis helps you learn how medical concepts connect - so that you can retain more information, study smarter and apply what you learn to exams and in clinical practice. And now, you can ask Osmosis AI for instant, evidence-based answers grounded in Elsevier medical textbooks and linked to Osmosis videos. Generate flashcards, quizzes, summaries and mnemonics on demand with AI so you never have to second-guess your source. EXAM PREP FOR EVERY US MEDICAL LICENSING EXAM • USMLE Step 1 & Step 2 • COMLEX-USA Level 1 & Level 2 • NCLEX-RN & NCLEX-PN • PANCE • ABFM / ABIM • UKMLA (UK) With Osmosis, everything in your medical studies connects so nothing gets lost. Flashcards, videos and notes work together to make every study session stress free and every exam prep hour more productive. Ready to learn smarter? DOWNLOAD today to start your FREE 7-DAY TRIAL. STUDY ANYWHERE, ANYTIME Download medical videos and exam questions for offline study on the commute, before rounds or between clinics. Sync across iPhone, iPad and web so you can learn wherever you are. WHY CHOOSE OSMOSIS? • 1000s of concise medical videos that simplify complex medical concepts and support visual learning • Medical flashcards that help you learn and retain key concepts, with concise explanations reviewed by medical experts • A custom quiz builder that transforms your study time so you can master medical material and ace your exams • Board-style practice exam questions with detailed explanations • 450+ high-yield summary notes with key points and diagrams from videos • Printable clinical decision-making trees to learn on the go • Spaced repetition guides what medical concepts to study next, focusing you on the areas where you need it the most YOUR ALL-IN-ONE MEDICAL LEARNING TOOLKIT From concept mastery to clinical reasoning, Osmosis turns complex medical material into clear, digestible learning experiences so that you can study with confidence and pass exams first time, every time. LEARN SMARTER Our videos and High-Yield medical study notes condense everything you need to learn and nothing you don't. Study efficiently and retain the medical knowledge that matters most for board exams and clinical practice. GET A PERSONALIZED, FLEXIBLE STUDY PLAN IN MINUTES Choose your learning goals and set your study hours, Osmosis handles the rest. Your daily study checklist shows which videos, exam questions and topics to learn each day. Add custom tasks like homework, practice exams and reminders to keep your medical studies on track. FOLLOW OSMOSIS ON SOCIAL: YouTube: youtube.com/osmosis TikTok: @learnbyosmosis Instagram: @osmosismed Facebook: @OsmoseIt X: twitter.com/OsmosisMed Bluesky: @osmosismed.bsky.social DOWNLOAD and start your FREE 7-DAY TRIAL today! Subscriptions are charged annually & automatically renew unless auto-renew is turned off at least 24-hours before end of the current period. Payment will be charged to iTunes Account at confirmation of purchase. Your iTunes Account will be charged the current annual subscription cost each year for renewal within 24-hours prior to end of current period. You can manage your subscriptions and turn off auto-renewal by going to your iTunes Account Settings any time after purchase. Any free trial will be interrupted when a paid subscription is purchased. Terms: www.osmosis.org/terms Privacy policy: www.osmosis.org/privacy Contact support@osmosis.org with any account/purchase queries.
Screenshots
Verdict
The clearest difference is update cadence: IMAIOS e at every 9 days against Osmosis's monthly. On price, rating, review sentiment and ratings volume 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. IMAIOS e sells 2 in-app purchases, starting at $21.99 per month and Osmosis sells 10 in-app purchases, starting at $16.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for IMAIOS e against 4.8 for Osmosis. Both are backed by a comparable volume of ratings — 1.4K and 3.9K respectively. Written reviews split almost evenly too, at 48% and 47% positive.
IMAIOS e ships an update every 9 days, Osmosis monthly. Both last shipped on November 1, 2026.
| Parameter | IMAIOS e | Osmosis |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (1.4K ratings) — better | 4.8 (3.9K ratings) |
| Positive reviews | 47.9% of reviews — better | 47.4% of reviews |
| Number of ratings | 1.4K | 3.9K — better |
| Update frequency | Every 9 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #73 — better | #99 |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.6 — better |
| Further details — not scored | ||
| Size | 2.1 GB | 70 MB |
| Age rating | 17+ | 17+ |
| Developer | IMAIOS | Knowledge Diffusion |
Customer experience
IMAIOS e
Osmosis
Bugs and requests
IMAIOS e
Not enough reviews yet to summarise bugs or requests.
Osmosis
Reported bugs
5 issues- Verification email never sent
- Videos won't play or keep restarting
- Inability to access high-yield notes on app
- Flashcards and quizzes not working properly
- App getting stuck on loading/login screens
Requested features
5 requests- Add speech pathology to the platform
- Provide Arabic subtitles for videos
- Implement split-screen functionality
- Allow editing of flashcards on mobile
- Improve search and playlist features
In-app purchases
IMAIOS e
- e-Anatomy monthly Subscription$21.991 Month
- e-Anatomy one year Subscription$132.991 Year
Osmosis
- Osmosis Full Access Monthly$16.991 Month
- Osmosis Suite Access Monthly$49.001 Month
- Clinical Science 6 Month$129.006 Months
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- Osmosis Suite Access 3 Month$149.003 Months
- Basic Sciences Access 6 Month$179.006 Months
- Osmosis Full Access 6 Month$179.996 Months
- Osmosis Full Access Yearly$199.991 Year
- Basic Sciences Access Yearly$199.991 Year
- Osmosis Suite Access 6 Month$229.006 Months
- Osmosis Suite Access Yearly$249.001 Year
Questions
Is IMAIOS e free?
Is Osmosis free?
Which has better reviews, IMAIOS e or Osmosis?
Do IMAIOS e or Osmosis have ads?
Which is updated more often, IMAIOS e or Osmosis?
Which is more popular, IMAIOS e or Osmosis?
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