# Primum vs Roon for Doctors

The clearest difference is rating: Roon for Doctors at 5.0 against Primum's 4.2. Roon for Doctors also leads on update cadence (weekly vs every 2 months) and monetization model (free vs ad-supported). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Roon for Doctors holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Roon for Doctors has 29 ratings behind it against 5, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Primum ships an update every 2 months, Roon for Doctors weekly. The most recent releases landed on October 19, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Primum | Roon for Doctors |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/primum/id6651755259/reviews) | **[5.0 (29 ratings)](https://appshunter.io/ios/app/roon-for-doctors/id6749781848/reviews)** |
| Number of ratings | 5 | **29** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Ad-supported | **Free** |
| Size | 75 MB | 114 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Primum](https://appshunter.io/developer/1707581637) | [CareSpace Health](https://appshunter.io/developer/1669337444) |

## What reviewers say

### Primum

[App page](https://appshunter.io/ios/app/primum/id6651755259)

Connect with expert oncologists for case-specific advice and treatment decision support. This app facilitates direct messaging with specialists, offering actionable insights and a platform to manage your inquiries efficiently.

**Highlights:** Search and filter expert oncologists, Direct messaging with specialists, Real-time chat and notifications, Case-specific advice, Inbox management, Reference past inquiries

**Features:** macOS Compatibility, iMessage stickers

**In-app purchases:** none


### Roon for Doctors

[App page](https://appshunter.io/ios/app/roon-for-doctors/id6749781848)

A private digital space for verified physicians to connect, share knowledge, and discuss evolving clinical practices. It fosters collaboration across specialties and helps build trust in medical expertise.

**Highlights:** Verified physician-only community, Cross-specialty collaboration, Discussion of emerging treatments, Building trust in medical expertise, Secure and private connection

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

**In-app purchases:** none


## Frequently asked questions

### Is Primum free?

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

### Is Roon for Doctors free?

Roon for Doctors is free to download, with no in-app purchases.

### Which has better reviews, Primum or Roon for Doctors?

Roon for Doctors is rated higher. Primum averages 4.2 out of 5 from 5 ratings, while Roon for Doctors averages 5.0 from 29 ratings.

### Do Primum or Roon for Doctors have ads?

Neither Primum nor Roon for Doctors shows ads.

### Which is updated more often, Primum or Roon for Doctors?

Primum ships an update every 2 months, and Roon for Doctors weekly. Most recently, Primum was updated on October 19, 2026 and Roon for Doctors on October 6, 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.*