# Daily CCD vs US MSK

The clearest difference is in-app purchases: Daily CCD at none against US MSK's 2. Daily CCD also leads on review sentiment (80% vs 50%) and update cadence (every 10 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. US MSK sells 2 in-app purchases, starting at $0.99 per month. Daily CCD asks for nothing beyond the download.

Daily CCD ships an update every 10 days, US MSK every 6 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Daily CCD | US MSK |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **80.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 57 MB | 31 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Daily CCD](https://appshunter.io/developer/1512207950) | [Azul Systems](https://appshunter.io/developer/1460850225) |

## What reviewers say

### Daily CCD

[App page](https://appshunter.io/ios/app/daily-ccd/id1512207951)

Access a wide range of health courses, including ultrasonography, nutritional therapy, and more. Learn through diverse content formats like videos, audio, and text with supplementary materials for deeper understanding.

**Highlights:** Ultrasonography courses, Nutritional therapy, Disturbances and intoxications, Video content, Audio lessons, Text materials, Extra learning resources

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

**In-app purchases:** none


### US MSK

[App page](https://appshunter.io/ios/app/us-msk/id1611606746)

This medical app serves as an atlas for musculoskeletal ultrasound imaging of the upper and lower limbs. It provides detailed visual guidance for diagnostic procedures. The app offers a free trial for its subscription plans.

**Highlights:** Musculoskeletal ultrasound atlas, Upper limb imaging, Lower limb imaging, Diagnostic guidance, Free trial available

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Annual | $9.99 | per year |


## Frequently asked questions

### Is Daily CCD free?

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

### Is US MSK free?

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

### Do Daily CCD or US MSK have ads?

Neither Daily CCD nor US MSK shows ads.

### Which is updated more often, Daily CCD or US MSK?

Daily CCD ships an update every 10 days, and US MSK every 6 weeks. Most recently, Daily CCD was updated on November 3, 2026 and US MSK on November 3, 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.*