# NYSORA Nerve Blocks vs Master Anesthesia

The clearest difference is monetization model: NYSORA Nerve Blocks at free with in-app purchases against Master Anesthesia's subscription. NYSORA Nerve Blocks also leads on chart position (#11 vs #167). Master Anesthesia's advantage is review sentiment (78% vs 56%). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. NYSORA Nerve Blocks sells 2 in-app purchases, starting at $19.99 per month and Master Anesthesia sells 7 in-app purchases, starting at $69.99 per year. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for NYSORA Nerve Blocks against 4.9 for Master Anesthesia. Both are backed by a comparable volume of ratings — 1.1K and 2K respectively. Written reviews are what separate them: 56% of NYSORA Nerve Blocks's written reviews are positive against 78% of Master Anesthesia's.

Both ship on a similar rhythm, roughly weekly. Both last shipped on October 29, 2026.

## The numbers

| Metric | NYSORA Nerve Blocks | Master Anesthesia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (1.1K ratings)](https://appshunter.io/ios/app/nysora-nerve-blocks/id912563749/reviews) | **[4.9 (2K ratings)](https://appshunter.io/ios/app/master-anesthesia/id1550793078/reviews)** |
| Number of ratings | 1.1K | **2K** |
| Positive reviews | 56.0% of reviews | **78.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | **Free with in-app purchases** | Subscription |
| Best chart rank | **#11** | #167 |
| Size | 69 MB | 66 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [NYSORA inc.](https://appshunter.io/developer/1507388998) | [Matthew Willis](https://appshunter.io/developer/1550793080) |

## What reviewers say

### NYSORA Nerve Blocks

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

**Currently charting:** #11 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


### Master Anesthesia

[App page](https://appshunter.io/ios/app/master-anesthesia/id1550793078)

**Currently charting:** #167 Top Grossing · Medical (US App Store)

This app provides anesthesia professionals with quick answers to common questions. It highlights anesthetic implications of diseases, surgical cases, and drugs, and includes a searchable acronym list and a comprehensive calculator for dosages, blood loss, and fluid management.

**Highlights:** Disease anesthetic implications, Surgical case anesthetic implications, Drug anesthetic implications, Searchable acronym list, Local anesthetic dosage calculator, Blood volume and loss calculator, Fluid and equipment calculations

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Master Anesthesia Contributor | $69.99 | per year |
| Full Access CE | $449.00 | per year |
| Module Unlock | $24.99 | one-time |
| Course Unlock | $99.00 | one-time |
| Master Anesthesia One Time | $99.99 | one-time |
| One-Time | $149.99 | one-time |
| Course Unlock | $449.00 | one-time |

**What reviewers like**

- 👍 Intuitive and user-friendly interface
- 🚀 Efficient and fast calculators
- 📚 Comprehensive information and resources
- 💡 Helpful for clinical practice and preparation
- 🔍 Useful reference for anesthesia providers

**What reviewers complain about**

- 🐛 Frequent crashes and freezes in the calculations section
- 🔒 Issues with purchase verification and login
- 💰 Concerns about the transition to a paid subscription model
- 🔋 High battery consumption and performance issues on older devices

**Reported bugs**

- Incorrect terminology and credentials on the starting screen
- Inconsistent behavior when accessing content after subscription changes

**Requested features**

- Offline access to content
- Apple Watch integration for the calculator
- More detailed and up-to-date information on procedures and conditions


## Frequently asked questions

### Is NYSORA Nerve Blocks free?

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

### Is Master Anesthesia free?

Master Anesthesia is free to download, with in-app purchases available.

### Which has better reviews, NYSORA Nerve Blocks or Master Anesthesia?

Master Anesthesia is rated higher. NYSORA Nerve Blocks averages 4.9 out of 5 from 1.1K ratings, while Master Anesthesia averages 4.9 from 2K ratings.

### Do NYSORA Nerve Blocks or Master Anesthesia have ads?

Neither NYSORA Nerve Blocks nor Master Anesthesia shows ads.

### Which is updated more often, NYSORA Nerve Blocks or Master Anesthesia?

NYSORA Nerve Blocks ships an update weekly, and Master Anesthesia weekly. Most recently, NYSORA Nerve Blocks was updated on October 29, 2026 and Master Anesthesia on October 29, 2026.

### Which is more popular, NYSORA Nerve Blocks or Master Anesthesia?

NYSORA Nerve Blocks currently peaks at #11 in the App Store charts, and Master Anesthesia at #167. Chart position reflects recent download velocity rather than total install base.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*