# mskNAV vs MSK Sono

The clearest difference is rating: MSK Sono at 5.0 against mskNAV's 4.5. MSK Sono also leads on update cadence (every 6 days vs every 2 months) and chart position (#54 vs unranked). mskNAV's advantage is in-app purchases (none vs 6) and iOS requirement (9.2 vs 16.4). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. MSK Sono sells 6 in-app purchases, starting at $29.99 per month. mskNAV asks for nothing beyond the download.

MSK Sono holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 11 and 12 respectively. Written reviews point the same way: 89% of mskNAV's written reviews are positive against 100% of MSK Sono's.

mskNAV ships an update every 2 months, MSK Sono every 6 days. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | mskNAV | MSK Sono |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (11 ratings)](https://appshunter.io/ios/app/msknav/id731034633/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/msk-sono-ultrasound-guide/id6765696708/reviews)** |
| Number of ratings | 11 | **12** |
| Positive reviews | 88.9% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#54** |
| Size | 1.7 GB | 99 MB |
| Requires iOS | **9.2** | 16.4 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 12+ | 17+ |
| Developer | [7D Imaging, Inc.](https://appshunter.io/developer/731034636) | [The Bold Apps](https://appshunter.io/developer/1778750149) |

## What reviewers say

### mskNAV

[App page](https://appshunter.io/ios/app/msknav/id731034633)

Learn musculoskeletal ultrasound with interactive guides, labeled videos, and 3D anatomy. This comprehensive reference tool is designed for healthcare professionals and students to build confidence in MSK ultrasound anytime, anywhere.

**Highlights:** Comprehensive reference guides, Interactive ultrasound video clips, 3D labeled musculoskeletal anatomy, Step-by-step examination protocols, Pathology image libraries, Expert tips and pearls

**Features:** macOS Compatibility

**In-app purchases:** none


### MSK Sono

[App page](https://appshunter.io/ios/app/msk-sono-ultrasound-guide/id6765696708)

**Currently charting:** #54 Top Grossing · Medical (US App Store)

Master musculoskeletal ultrasound with this comprehensive reference app. It provides step-by-step guides, detailed anatomy, and procedural instructions for clinicians and learners. Improve scanning accuracy and confidence in daily practice.

**Highlights:** Step-by-step scanning guides, Detailed sonographic anatomy, Ultrasound-guided injection techniques, Nerve block guidance, High-resolution ultrasound images, Probe positioning and orientation, MSK pathology reference library

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $29.99 | per month |
| premium | $99.00 | per year |
| premium | $129.00 | per year |
| Yearly | $199.99 | per year |
| Yearly | $249.00 | per year |
| Yearly | $249.99 | per year |


## Frequently asked questions

### Is mskNAV free?

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

### Is MSK Sono free?

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

### Which has better reviews, mskNAV or MSK Sono?

MSK Sono is rated higher. mskNAV averages 4.5 out of 5 from 11 ratings, while MSK Sono averages 5.0 from 12 ratings.

### Do mskNAV or MSK Sono have ads?

Neither mskNAV nor MSK Sono shows ads.

### Which is updated more often, mskNAV or MSK Sono?

mskNAV ships an update every 2 months, and MSK Sono every 6 days. Most recently, mskNAV was updated on October 23, 2026 and MSK Sono on October 31, 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.*