# TEE Colour Doppler vs NYSORA Nerve Blocks

The clearest difference is price: NYSORA Nerve Blocks at Free against TEE Colour Doppler's $4.99. NYSORA Nerve Blocks also leads on rating (4.9 vs 3.0) and update cadence (weekly vs every 24 months). TEE Colour Doppler's advantage is in-app purchases (none vs 2) and iOS requirement (6.0 vs 15.1). On ads there is nothing between them.

NYSORA Nerve Blocks is free to download; TEE Colour Doppler costs $4.99 up front. NYSORA Nerve Blocks sells 2 in-app purchases, starting at $19.99 per month. TEE Colour Doppler asks for nothing beyond the download.

NYSORA Nerve Blocks holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: NYSORA Nerve Blocks has 1.1K ratings behind it against 2, so its average is the more settled of the two.

TEE Colour Doppler ships an update every 24 months, NYSORA Nerve Blocks weekly. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | TEE Colour Doppler | NYSORA Nerve Blocks |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/tee-colour-doppler/id752231916/reviews) | **[4.9 (1.1K ratings)](https://appshunter.io/ios/app/nysora-nerve-blocks/id912563749/reviews)** |
| Number of ratings | 2 | **1.1K** |
| Positive reviews | — | 56.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | — | **#10** |
| Size | 65 MB | 69 MB |
| Requires iOS | **6.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [University Health Network](https://appshunter.io/developer/361257574) | [NYSORA inc.](https://appshunter.io/developer/1507388998) |

## What reviewers say

### TEE Colour Doppler

[App page](https://appshunter.io/ios/app/tee-colour-doppler/id752231916)

This medical app visualizes cardiac blood flow using 2D and 3D color Doppler imaging. It aids in diagnosing and quantifying the severity of cardiac lesions by demonstrating normal flow patterns across heart structures.

**Highlights:** 2D and 3D echocardiography visualization, Color Doppler imaging for blood flow assessment, Rotatable 3D heart models, Color compare video clips, Demonstrates normal blood flow patterns

**In-app purchases:** none


### NYSORA Nerve Blocks

[App page](https://appshunter.io/ios/app/nysora-nerve-blocks/id912563749)

**Currently charting:** #10 Top Grossing · Medical (US App Store)

This app serves as a comprehensive reference for ultrasound-guided regional anesthesia, aiding anesthesiologists and pain specialists. It provides structured guidance and clear anatomy for a wide range of nerve block procedures, supporting clinical preparation and learning.

**Highlights:** Ultrasound-guided regional anesthesia reference, Covers head, neck, extremities, thoracic, and abdominal blocks, Includes sonoanatomy and functional anatomy, Step-by-step preparation for procedures, Supports clinical decision-making, Developed by a global educational organization

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FULL ACCESS SUBSCRIPTION | $19.99 | per month |
| FULL ACCESS SUBSCRIPTION | $129.99 | per year |

**What reviewers like**

- 📚 High-quality educational content and images
- 🎯 Clean, intuitive layout and user interface
- ✅ Comprehensive regional anesthesia reference
- 🔄 Regularly updated with current information
- 👨‍⚕️ Excellent for clinical practice and teaching

**What reviewers complain about**

- 💰 Expensive subscription pricing model
- 🐛 App crashes and won't open (frequent issue)
- 📱 Poor iPad/tablet support and landscape mode
- 🌐 Requires internet connection, no offline mode
- 🎥 Videos frequently fail to load or play

**Reported bugs**

- App won't open or stays on startup screen
- Blank page displayed on launch
- Videos fail to load or play
- Screen goes blank when accessing technique sections
- iCloud login authentication failures

**Requested features**

- Landscape orientation support for tablets and iPad
- Offline mode for accessing content without internet
- Additional language support (Russian, Turkish, Portuguese subtitles)
- Lifetime purchase option instead of subscription
- More regional anesthesia block techniques coverage


## Frequently asked questions

### Is TEE Colour Doppler free?

TEE Colour Doppler costs $4.99, with no in-app purchases.

### Is NYSORA Nerve Blocks free?

NYSORA Nerve Blocks is free to download, with in-app purchases available.

### Which has better reviews, TEE Colour Doppler or NYSORA Nerve Blocks?

NYSORA Nerve Blocks is rated higher. TEE Colour Doppler averages 3.0 out of 5 from 2 ratings, while NYSORA Nerve Blocks averages 4.9 from 1.1K ratings.

### Do TEE Colour Doppler or NYSORA Nerve Blocks have ads?

Neither TEE Colour Doppler nor NYSORA Nerve Blocks shows ads.

### Which is updated more often, TEE Colour Doppler or NYSORA Nerve Blocks?

TEE Colour Doppler ships an update every 24 months, and NYSORA Nerve Blocks weekly. Most recently, TEE Colour Doppler was updated on November 1, 2026 and NYSORA Nerve Blocks on November 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.*