Comparison

Osmosis vs Eyemo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Animated medical videos
  • Spaced repetition flashcards
  • Board-style practice questions
  • Downloadable notes and videos
  • Clinical decision-making trees
  • Cross-platform syncing
Currently charting
Read full description

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.

About

Eyemo

This app helps medical professionals master neuro-ophthalmology through interactive animations and quizzes. It covers a wide range of eye movement and pupillary disorders with detailed explanations and expert-reviewed content.

Highlights
  • 75+ precision-crafted animations
  • 200+ animated quiz questions
  • Covers 50+ afferent and efferent disorders
  • Teaching, Identify, and Quiz modes
  • Expert-reviewed content
  • Detailed, referenced explanations
Features
Read full description

Eyemo is a comprehensive neuro-ophthalmology learning application, featuring more than 75 precision-crafted animations and over 200 animated quiz questions covering 50 afferent and efferent disorders; it is designed to strengthen diagnostic reasoning. Created by a Consultant Neurologist subspecialising in neuro-ophthalmology and neuro-otology, and peer-reviewed by international experts, Eyemo explains complex eye movement disorders clearly. It helps learners recognise each sign accurately and understand the underlying mechanism. LEARN THROUGH THREE FOCUSED MODES • Teaching Mode: slowed, fullscreen, blink-free animations, suitable for group teaching. • Identify Mode: continuous, randomised playback for training rapid pattern recognition. • Quiz Mode: challenging single best answer questions that test higher order diagnostic reasoning, alongside detailed explanations. WHAT IS INCLUDED • More than 75 clinically accurate, vector based animations. • More than 200 quiz questions with detailed, referenced explanations. • 50 conditions spanning cranial nerve palsies and variants (third, fourth and sixth nerve), the internuclear ophthalmoplegia spectrum (including INO plus), nystagmus, saccadic dyskinesias, vertical gaze palsies, myokymia, light near dissociation and anisocoria. • Content based on Leigh and Zee, Liu, Volpe and Galetta, Brazis, Walsh and Hoyt, and the NOVEL library. VALIDATED BY LEARNERS In pre launch testing with medical students, residents, fellows and neuro-ophthalmologists, Eyemo received the following ratings: • 5.0 out of 5 for accurately depicting eye movement abnormalities. • 4.9 out of 5 for likelihood of recommendation to novice learners. • 4.8 out of 5 for simplifying difficult neuro-ophthalmic concepts. These findings were presented at the North American Neuro-Ophthalmology Society (NANOS) Annual Meeting in Arizona, 2025. WHO IT IS FOR Medical students, orthoptists, optometrists and clinical educators, neurology and ophthalmology residents, practicing neurologists and ophthalmologists, and anyone seeking to build diagnostic confidence in eye movement and pupillary disorders. HOW IT WORKS The application is free to download and includes beginner level content. A one time purchase unlocks the full animation library, expert level topics, Teaching Mode and the complete question bank, providing lifetime access with no subscriptions and no advertisements. An internet connection is required. Eyemo is designed for a global, English speaking audience.

Screenshots

Osmosis4 screens
Eyemo4 screens

Verdict

The call

Osmosis and Eyemo both sit at 4.8 stars, but that hides the real split: 100% of Eyemo's written reviews are positive against 47% of Osmosis's. Eyemo also leads on update cadence (every 3 days vs monthly). Osmosis's advantage is ratings volume (3.9K vs 1) and chart position (#69 vs unranked). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Osmosis sells 12 in-app purchases, starting at $16.99 per month and Eyemo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Eyemo holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Osmosis has 3.9K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 47% of Osmosis's written reviews are positive against 100% of Eyemo's.

UpkeepUpdate frequency

Osmosis ships an update monthly, Eyemo every 3 days. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 7 level
Osmosis versus Eyemo: the parameters behind the verdict, then further details
ParameterOsmosisEyemo
PriceFreeFree
Rating4.8 (3.9K ratings)5.0 (1 ratings) — better
Positive reviews47.4% of reviews100.0% of reviews — better
Number of ratings3.9K — better1
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#69 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size70 MB32 MB
Age rating17+17+
DeveloperKnowledge DiffusionSunjay Parmar

Customer experience

Osmosis

All ratings3,884 ratings
Positive95.6%
Neutral1.7%
Negative2.7%
Written reviews234 reviews
Positive47.4%
Neutral15.8%
Negative36.8%

Eyemo

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and 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

Eyemo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Osmosis

Subscriptions12
  • Osmosis Full Access Monthly3 variants$16.991 Month
  • Clinical Sciences Monthly$16.991 Month
  • Osmosis Basic Sciences Monthly$16.991 Month
Show 9 more
  • Osmosis Suite Access Monthly$49.001 Month
  • Clinical Science 6 Month$129.006 Months
  • Clinical Science Access Yearly$169.001 Year
  • 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
1 purchases

Eyemo

One-time1
  • Lifetime Pro Access$7.99

Questions

Is Osmosis free?
Osmosis is free to download, with in-app purchases available.
Is Eyemo free?
Eyemo is free to download, with in-app purchases available.
Which has better reviews, Osmosis or Eyemo?
Eyemo is rated higher. Osmosis averages 4.8 out of 5 from 3.9K ratings, while Eyemo averages 5.0 from 1 ratings.
Do Osmosis or Eyemo have ads?
Neither Osmosis nor Eyemo shows ads.
Which is updated more often, Osmosis or Eyemo?
Osmosis ships an update monthly, and Eyemo every 3 days. Most recently, Osmosis was updated on November 1, 2026 and Eyemo on October 25, 2026.

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