# UpToDate vs Osmosis

The clearest difference is rating: Osmosis at 4.8 against UpToDate's 3.6. Osmosis also leads on review sentiment (47% vs 28%) and ratings volume (3.9K vs 583). UpToDate's advantage is in-app purchases (none vs 14). On price, update cadence, ads and chart position there is nothing between them.

Both are free to download. Osmosis sells 12 in-app purchases, starting at $16.99 per month. UpToDate asks for nothing beyond the download.

Osmosis holds the better App Store score, 4.8 against 3.6. That said, the two scores are not equally well evidenced: Osmosis has 3.9K ratings behind it against 583, so its average is the more settled of the two. Written reviews point the same way: 28% of UpToDate's written reviews are positive against 47% of Osmosis's.

UpToDate ships an update every 5 weeks, Osmosis monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | UpToDate | Osmosis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (583 ratings)](https://appshunter.io/ios/app/uptodate/id334265345/reviews) | **[4.8 (3.9K ratings)](https://appshunter.io/ios/app/osmosis-med-school-study-app/id646540641/reviews)** |
| Number of ratings | 583 | **3.9K** |
| Positive reviews | 28.2% of reviews | **47.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Subscription | **Free with in-app purchases** |
| Best chart rank | #194 | **#74** |
| Size | 56 MB | 70 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [UpToDate, Inc.](https://appshunter.io/developer/334265348) | [Knowledge Diffusion](https://appshunter.io/developer/646540644) |

## What reviewers say

### UpToDate

[App page](https://appshunter.io/ios/app/uptodate/id334265345)

**Currently charting:** #194 Top Free · Medical (US App Store)

This clinical decision support tool provides healthcare professionals with evidence-based guidance to improve patient care. It features AI-powered conversational answers, continuously updated medical content, and tools for drug reference, calculations, and patient education.

**Highlights:** Expert AI conversational guidance, Gold standard clinical content, Practice-changing updates, Patient education materials, Drug reference and interactions, Clinical calculators, Kidney dosing guidance

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💎 Invaluable medical resource
- 🚀 Quick and easy to use
- 🔍 Comprehensive and up-to-date content

**What reviewers complain about**

- 🐛 Frequent crashes and freezing issues
- 🔌 Unreliable offline functionality
- 💰 Expensive subscription cost

**Reported bugs**

- Inability to download offline content
- Constant need to re-authenticate
- Incompatibility with recent iOS updates

**Requested features**

- Highlight and annotate content
- Improved institutional login support
- Dark mode and font size options


### Osmosis

[App page](https://appshunter.io/ios/app/osmosis-med-school-study-app/id646540641)

**Currently charting:** #74 Top Grossing · Medical (US App Store)

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Osmosis Full Access Monthly | $16.99 | per month |
| Clinical Sciences Monthly | $16.99 | per month |
| Osmosis Basic Sciences Monthly | $16.99 | per month |
| Osmosis Suite Access Monthly | $49.00 | per month |
| Clinical Science 6 Month | $129.00 | per 6 months |
| Clinical Science Access Yearly | $169.00 | per year |
| Basic Sciences Access 6 Month | $179.00 | per 6 months |
| Osmosis Full Access 6 Month | $179.99 | per 6 months |
| Osmosis Full Access Yearly | $199.99 | per year |
| Basic Sciences Access Yearly | $199.99 | per year |
| Osmosis Suite Access 6 Month | $229.00 | per 6 months |
| Osmosis Suite Access Yearly | $249.00 | per year |

**What reviewers like**

- 🚀 Great study tool
- 💡 Helpful videos and flashcards
- 👍 Engaging and easy to understand content
- 🚀 Efficient for on-the-go learning
- 👍 Customizable study experience

**What reviewers complain about**

- 🐛 Buggy app with crashes and glitches
- 🔋 Offline functionality issues
- 👎 Limited features compared to website
- 👎 Subscription confusion and billing issues
- 👎 Slow and unresponsive app performance

**Reported bugs**

- 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**

- 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


## Frequently asked questions

### Is UpToDate free?

UpToDate is free to download, with no in-app purchases.

### Is Osmosis free?

Osmosis is free to download, with in-app purchases available.

### Which has better reviews, UpToDate or Osmosis?

Osmosis is rated higher. UpToDate averages 3.6 out of 5 from 583 ratings, while Osmosis averages 4.8 from 3.9K ratings.

### Do UpToDate or Osmosis have ads?

Neither UpToDate nor Osmosis shows ads.

### Which is updated more often, UpToDate or Osmosis?

UpToDate ships an update every 5 weeks, and Osmosis monthly. Most recently, UpToDate was updated on October 24, 2026 and Osmosis on October 24, 2026.

### Which is more popular, UpToDate or Osmosis?

UpToDate currently peaks at #194 in the App Store charts, and Osmosis at #74. Chart position reflects recent download velocity rather than total install base.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*