# MMCORC vs Primum

The clearest difference is rating: MMCORC at 5.0 against Primum's 4.2. MMCORC also leads on ads (none vs shown) and monetization model (free vs ad-supported). Primum's advantage is update cadence (every 2 months vs every 13 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.

MMCORC holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 2 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

MMCORC ships an update every 13 months, Primum every 2 months. The most recent releases landed on September 22, 2026 and August 4, 2026 respectively.

## The numbers

| Metric | MMCORC | Primum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mmcorc/id1639129017/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/primum/id6651755259/reviews) |
| Number of ratings | 2 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 43 MB | 53 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [HealthPartners Institute](https://appshunter.io/developer/1639129019) | [PRIMUM HEALTH, INC.](https://appshunter.io/developer/1707581637) |

## What reviewers say

### MMCORC

[App page](https://appshunter.io/ios/app/mmcorc/id1639129017)

Discover active cancer clinical trials in the Minnesota Metro area. Search by tumor type or keywords, explore partnered locations, and access resources about clinical trials. Suitable for those considering or enrolled in a trial.

**Highlights:** Find active cancer clinical trials, Search by tumor type, Keyword search functionality, Explore partnered locations, Access clinical trial resources

**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

**In-app purchases:** none


## Frequently asked questions

### Is MMCORC free?

MMCORC 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, MMCORC or Primum?

MMCORC is rated higher. MMCORC averages 5.0 out of 5 from 2 ratings, while Primum averages 4.2 from 5 ratings.

### Do MMCORC or Primum have ads?

Primum shows ads; MMCORC does not.

### Which is updated more often, MMCORC or Primum?

MMCORC ships an update every 13 months, and Primum every 2 months. Most recently, MMCORC was updated on September 22, 2026 and Primum on August 4, 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.*