# Osmosis vs ParaPass

The clearest difference is monetization model: Osmosis at free with in-app purchases against ParaPass's subscription. Osmosis also leads on chart position (#69 vs unranked). ParaPass's advantage is review sentiment (82% vs 47%). On price, update cadence, 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 ParaPass sells 2 in-app purchases, starting at $4.49 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Osmosis | ParaPass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (3.9K ratings)](https://appshunter.io/ios/app/osmosis-med-school-study-app/id646540641/reviews)** | — |
| Number of ratings | **3.9K** | — |
| Positive reviews | 47.4% of reviews | **81.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | **Free with in-app purchases** | Subscription |
| Best chart rank | **#69** | — |
| Size | 70 MB | 53 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Knowledge Diffusion](https://appshunter.io/developer/646540644) | [Class Publishing Ltd](https://appshunter.io/developer/884962940) |

## 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


### ParaPass

[App page](https://appshunter.io/ios/app/parapass/id1220803129)

This app offers on-the-go learning resources and quizzes for paramedics to support their Continuing Professional Development (CPD). It features evidence-based discussions, case scenarios, and self-assessment questions, with offline access available. CPD certificates are provided to track learning.

**Highlights:** CPD resources for paramedics, Multiple choice quizzes, Case scenarios, Self-assessment questions, CPD certificates, Offline access

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month subscription - CPD | $4.49 | per month |
| 12 Month subscription - JRCLAC | $42.99 | per year |


## Frequently asked questions

### Is Osmosis free?

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

### Is ParaPass free?

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

### Do Osmosis or ParaPass have ads?

Neither Osmosis nor ParaPass shows ads.

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

Osmosis ships an update monthly, and ParaPass monthly. Most recently, Osmosis was updated on November 1, 2026 and ParaPass on October 29, 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.*