Comparison

Osmosis vs JRCALC PLUS

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

JRCALC PLUS

Access up-to-date national and regional prehospital care guidelines for UK professionals. This app provides essential clinical information, including medicines tables and algorithms, for registered trust members. It works offline, ensuring access to critical guidance even without a signal.

Highlights
  • Complete JRCALC Guidelines
  • Regional and local guidance
  • Clinical Notices for trusts
  • Medicines tables, algorithms, and advice
  • Offline functionality
Features
Read full description

JRCALC Plus JRCALC Plus provides up to date national and regional guidance for prehospital professionals across the UK relevant to their local trust. In order to gain access to JRCALC Plus, you must be part of a registered trust. Trusts maintain authority over the allocation of subscriptions to their staff. Eligibility criteria varies between trusts, so please confirm with your directorate if you are unsure whether you are eligible for access. Developed by Class Professional Publishing, key features of the app are: - Contains the complete JRCALC Guidelines - Contains regional and local guidance - Contains Clinical Notices for registered trusts - Includes all medicines tables, algorithms and advice - Works offline: No signal? No problem! Visit www.classprofessional.co.uk/app-reset to set your password. ------------------------------------------ Class Professional are the exclusive publisher of the JRCALC Clinical Practice Guidelines and have developed JRCALC Plus, a unique app, so clinicians can access local and national guidelines all in one place. Class Publishing have exclusive licence to publish and distribute the national guidelines, which are authored by both the Joint Royal Colleges of Ambulance Liaison Committee and the Association of Ambulance Chief Executives. National guidelines complement local guidelines on conveyance, Emergency Departments and other health services.

Screenshots

Osmosis4 screens
JRCALC PLUS4 screens

Verdict

The call

The clearest difference is in-app purchases: JRCALC PLUS at none against Osmosis's 14. Osmosis's advantage is review sentiment (47% vs 23%) and update cadence (monthly vs every 2 months). On price, ads, device support and iOS requirement 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. JRCALC PLUS asks for nothing beyond the download.

UpkeepUpdate frequency

Osmosis ships an update monthly, JRCALC PLUS every 2 months. Both last shipped on October 29, 2026.

Scorecard5 real differences · 6 level
Osmosis versus JRCALC PLUS: the parameters behind the verdict, then further details
ParameterOsmosisJRCALC PLUS
PriceFreeFree
Rating4.8 (3.9K ratings) — better—
Positive reviews47.4% of reviews — better23.1% of reviews
Number of ratings3.9K — better—
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#96 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.6 — better
Further details — not scored
Size70 MB270 MB
Age rating17+17+
DeveloperKnowledge DiffusionClass Publishing Ltd

Customer experience

Osmosis

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

JRCALC PLUS

Written reviews26 reviews
Positive23.1%
Neutral26.9%
Negative50.0%

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

JRCALC PLUS

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
None

JRCALC PLUS

No in-app purchases

Questions

Is Osmosis free?
Osmosis is free to download, with in-app purchases available.
Is JRCALC PLUS free?
JRCALC PLUS is free to download, with no in-app purchases.
Do Osmosis or JRCALC PLUS have ads?
Neither Osmosis nor JRCALC PLUS shows ads.
Which is updated more often, Osmosis or JRCALC PLUS?
Osmosis ships an update monthly, and JRCALC PLUS every 2 months. Most recently, Osmosis was updated on October 29, 2026 and JRCALC PLUS on October 29, 2026.

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