# Regional Anesthesia Reference vs Anesthesiologists

The clearest difference is update cadence: Regional Anesthesia Reference at every 5 months against Anesthesiologists's every 17 months. Regional Anesthesia Reference also leads on ratings volume (32 vs 5) and iOS requirement (8.0 vs 13.0). Anesthesiologists's advantage is review sentiment (100% vs 89%). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Regional Anesthesia Reference against 5.0 for Anesthesiologists. That said, the two scores are not equally well evidenced: Regional Anesthesia Reference has 32 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 89% of Regional Anesthesia Reference's written reviews are positive against 100% of Anesthesiologists's.

Regional Anesthesia Reference ships an update every 5 months, Anesthesiologists every 17 months. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Regional Anesthesia Reference | Anesthesiologists |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (32 ratings)](https://appshunter.io/ios/app/regional-anesthesia-reference/id1445967461/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/anesthesiologists/id6451498979/reviews) |
| Number of ratings | **32** | 5 |
| Positive reviews | 88.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 17 months |
| Monetization | Free | Free |
| Size | 89 MB | 10 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [University Of Washington](https://appshunter.io/developer/328228464) | [Vikas O'Reilly-Shah](https://appshunter.io/developer/1705995283) |

## What reviewers say

### Regional Anesthesia Reference

[App page](https://appshunter.io/ios/app/regional-anesthesia-reference/id1445967461)

This app offers a quick reference for regional nerve block placement using ultrasound. It includes detailed anatomy, patient positioning, and technique videos, along with a local anesthetic drug calculator.

**Highlights:** Ultrasound guidance for nerve blocks, Anatomy and positioning guides, Block placement technique videos, Local anesthetic drug calculator, List of current blocks

**Features:** macOS Compatibility

**In-app purchases:** none


### Anesthesiologists

[App page](https://appshunter.io/ios/app/anesthesiologists/id6451498979)

This medical app provides quick calculations for adult and pediatric anesthesia, including drug dosing and airway management based on patient weight and age. It's a valuable tool for anesthesiologists, CRNAs, physicians, and medical students.

**Highlights:** Adult and pediatric anesthesia calculations, Drug dosing (IM, RSI, infusions), Airway management tools, Calculations based on patient weight and age, Obstetric drug information, Continuous updates

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

**In-app purchases:** none


## Frequently asked questions

### Is Regional Anesthesia Reference free?

Regional Anesthesia Reference is free to download, with no in-app purchases.

### Is Anesthesiologists free?

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

### Which has better reviews, Regional Anesthesia Reference or Anesthesiologists?

Regional Anesthesia Reference and Anesthesiologists are both rated 5.0 out of 5 on the App Store, from 32 and 5 ratings respectively.

### Do Regional Anesthesia Reference or Anesthesiologists have ads?

Neither Regional Anesthesia Reference nor Anesthesiologists shows ads.

### Which is updated more often, Regional Anesthesia Reference or Anesthesiologists?

Regional Anesthesia Reference ships an update every 5 months, and Anesthesiologists every 17 months. Most recently, Regional Anesthesia Reference was updated on October 11, 2026 and Anesthesiologists on October 1, 2026.

---

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