# Research To Practice vs Primum

The clearest difference is rating: Research To Practice at 4.8 against Primum's 4.2. Primum's advantage is ads (none vs shown) and update cadence (every 2 months vs every 5 months). On price, review sentiment, ratings volume 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.

Research To Practice holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Research To Practice ships an update every 5 months, Primum every 2 months. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Research To Practice | Primum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/research-to-practice/id416269259/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/primum/id6651755259/reviews) |
| Number of ratings | 4 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Ad-supported | Ad-supported |
| Size | 53 MB | 75 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Research To Practice](https://appshunter.io/developer/416152018) | [Primum](https://appshunter.io/developer/1707581637) |

## What reviewers say

### Research To Practice

[App page](https://appshunter.io/ios/app/research-to-practice/id416269259)

Access CME/CNE accredited oncology education with diverse content formats. Stay updated on cancer research and management strategies through audio, video, and slide presentations. Content is organized by tumor type and recent releases.

**Highlights:** CME/CNE accredited activities, Sort by tumor type or recent releases, Audio, video, and slide formats, Dr Love's Picks, Upcoming events, Free content

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Research To Practice free?

Research To Practice is free to download, with no in-app purchases.

### Is Primum free?

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

### Which has better reviews, Research To Practice or Primum?

Research To Practice is rated higher. Research To Practice averages 4.8 out of 5 from 4 ratings, while Primum averages 4.2 from 5 ratings.

### Do Research To Practice or Primum have ads?

Research To Practice shows ads; Primum does not.

### Which is updated more often, Research To Practice or Primum?

Research To Practice ships an update every 5 months, and Primum every 2 months. Most recently, Research To Practice was updated on October 23, 2026 and Primum on October 19, 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.*