# NYSORA Nerve Blocks vs RezClock

The clearest difference is review sentiment: NYSORA Nerve Blocks at 56% against RezClock's 0%. NYSORA Nerve Blocks also leads on rating (4.9 vs 2.3) and monetization model (free with in-app purchases vs subscription). RezClock's advantage is iOS requirement (10.0 vs 15.1). On price, ads, in-app purchases and device support 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 RezClock sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

NYSORA Nerve Blocks holds the better App Store score, 4.9 against 2.3. That said, the two scores are not equally well evidenced: NYSORA Nerve Blocks has 1.1K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 56% of NYSORA Nerve Blocks's written reviews are positive against 0% of RezClock's.

NYSORA Nerve Blocks ships an update weekly, RezClock every 35 months. The most recent releases landed on October 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | NYSORA Nerve Blocks | RezClock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (1.1K ratings)](https://appshunter.io/ios/app/nysora-nerve-blocks/id912563749/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/rezclock/id988755622/reviews) |
| Number of ratings | **1.1K** | 3 |
| Positive reviews | **56.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 35 months |
| Monetization | **Free with in-app purchases** | Subscription |
| Best chart rank | **#10** | — |
| Size | 69 MB | 24 MB |
| Requires iOS | 15.1 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [NYSORA inc.](https://appshunter.io/developer/1507388998) | [Mitra U.S. Computer Solutions, Inc](https://appshunter.io/developer/988434177) |

## What reviewers say

### 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


### RezClock

[App page](https://appshunter.io/ios/app/rezclock/id988755622)

Automates medical resident duty hour tracking using location services to log arrival and departure times at clinical sites. Hours can be uploaded to other systems for generating ACGME required reports. Offers a free trial period before subscription.

**Highlights:** Automated time tracking, Location-based geofencing, Duty hours reporting, Data upload to MedProSuite, Free trial period

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RezClock Monthly - $0.99/month | $0.99 | per month |


## Frequently asked questions

### Is NYSORA Nerve Blocks free?

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

### Is RezClock free?

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

### Which has better reviews, NYSORA Nerve Blocks or RezClock?

NYSORA Nerve Blocks is rated higher. NYSORA Nerve Blocks averages 4.9 out of 5 from 1.1K ratings, while RezClock averages 2.3 from 3 ratings.

### Do NYSORA Nerve Blocks or RezClock have ads?

Neither NYSORA Nerve Blocks nor RezClock shows ads.

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

NYSORA Nerve Blocks ships an update weekly, and RezClock every 35 months. Most recently, NYSORA Nerve Blocks was updated on October 18, 2026 and RezClock on October 2, 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.*