# Osmosis vs Eyemo

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.

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.

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.

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

## The numbers

| Metric | Osmosis | Eyemo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (3.9K ratings)](https://appshunter.io/ios/app/osmosis-med-school-study-app/id646540641/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eyemo/id6745947590/reviews)** |
| Number of ratings | **3.9K** | 1 |
| Positive reviews | 47.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#69** | — |
| Size | 70 MB | 32 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Knowledge Diffusion](https://appshunter.io/developer/646540644) | [Sunjay Parmar](https://appshunter.io/developer/1814580999) |

## What reviewers say

### Osmosis

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

**Currently charting:** #69 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


### Eyemo

[App page](https://appshunter.io/ios/app/eyemo/id6745947590)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro Access | $7.99 | one-time |


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