Comparison

Osmosis vs MIR Spiro

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

MIR Spiro

This iOS app enables real-time spirometry and oximetry testing on iPads for healthcare providers. It measures key lung function parameters and blood oxygen saturation, offering pediatric incentives and data transfer capabilities.

Highlights
  • Real-time spirometry testing
  • Real-time oximetry testing
  • Measures FVC, FEV1, PEF, %SpO2, Pulse Rate
  • Pediatric incentive feature
  • Data transfer for backup
  • HL7 standard support
Features
Read full description

IMPORTANT NOTE: IMPORTANT NOTE: THIS APP IS ADDRESSED TO HEALTHCARE PROVIDER NOT TO THE PATIENTS IN CASE A PATIENT USE IT FOR SELF ASSESSMENT YOU MUST NEVER RELY ON ANY INFORMATION OBTAINED USING THIS APP FOR ANY DIAGNOSIS OR RECOMMENDATION FOR MEDICAL TREATMENT. YOU MUST NEVER RELY ON THE INFORMATION RECEIVED FROM THIS APP AS ALTERNATIVE TO MEDICAL ADVICE FROM YOUR PHYSICIAN OR OTHER PROFESSIONAL HEALTHCARE PROVIDER.IN CASE A PATIENT USE IT FOR SELF ASSESSMENT YOU MUST NEVER RELY ON ANY INFORMATION OBTAINED USING THIS APP FOR ANY DIAGNOSIS OR RECOMMENDATION FOR MEDICAL TREATMENT. YOU MUST NEVER RELY ON THE INFORMATION RECEIVED FROM THIS APP AS ALTERNATIVE TO MEDICAL ADVICE FROM YOUR PHYSICIAN OR OTHER PROFESSIONAL HEALTHCARE PROVIDER. MIR Spirometry and Oximetry App. iOS based App for Real Time Spirometry and Oximetry test on your iPad/iPad Mini with free online updates. Spirometry Parameters: FVC, FEV1, FEV1 %, PEF, FEF25–75, FET, ESTIMATED LUNG-AGE (adult), EVC e IVC. Available with both DISPOSABLE or REUSABLE turbine flowmeter. It is also possible verify the accuracy of the turbine in use by making a check of the calibration or, alternatively, by choosing to use the default factory calibration. Pediatric incentive Helpful to improve patient compliance during a Spirometry test. Oximetry Parameters: %SpO2 and Pulse Rate (Min, Max, Average). This innovative and easy to use App includes data transfer for backup and supports HL7 standard. The App is provided on request with the Smart version of Spirobank II®, which is the MIR device that comes with embedded Low Energy Bluetooth®. IMPORTANT: The present MIR Spiro update is compatible with versions 3.x or higher of the internal software of Spirobank II®. If the user has installed an earlier version, please contact the product vendor, who will provide a free upgrade of the internal software.

Screenshots

Osmosis4 screens

Verdict

The call

The clearest difference is in-app purchases: MIR Spiro at none against Osmosis's 14. MIR Spiro also leads on iOS requirement (12.4 vs 16.6). Osmosis's advantage is review sentiment (47% vs 17%) and ratings volume (3.9K vs 2). On price, update cadence, ads and device support 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. MIR Spiro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Osmosis holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Osmosis has 3.9K ratings behind it against 2, 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 17% of MIR Spiro's.

UpkeepUpdate frequency

Osmosis ships an update monthly, MIR Spiro every 2 months. The most recent releases landed on November 1, 2026 and October 7, 2026 respectively.

Scorecard7 real differences · 4 level
Osmosis versus MIR Spiro: the parameters behind the verdict, then further details
ParameterOsmosisMIR Spiro
PriceFreeFree
Rating4.8 (3.9K ratings) — better4.5 (2 ratings)
Positive reviews47.4% of reviews — better16.7% of reviews
Number of ratings3.9K — better2
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#69 — better—
DevicesiPhone, iPad — betteriPad
Requires iOS16.612.4 — better
Further details — not scored
Size70 MB23 MB
Age rating17+17+
DeveloperKnowledge DiffusionMIR Medical International Research

Customer experience

Osmosis

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

MIR Spiro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

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

MIR Spiro

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

MIR Spiro

No in-app purchases

Questions

Is Osmosis free?
Osmosis is free to download, with in-app purchases available.
Is MIR Spiro free?
MIR Spiro is free to download, with no in-app purchases.
Which has better reviews, Osmosis or MIR Spiro?
Osmosis is rated higher. Osmosis averages 4.8 out of 5 from 3.9K ratings, while MIR Spiro averages 4.5 from 2 ratings.
Do Osmosis or MIR Spiro have ads?
Neither Osmosis nor MIR Spiro shows ads.
Which is updated more often, Osmosis or MIR Spiro?
Osmosis ships an update monthly, and MIR Spiro every 2 months. Most recently, Osmosis was updated on November 1, 2026 and MIR Spiro on October 7, 2026.

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