# ASRA Coags vs Regional Anesthesia Reference

The clearest difference is review sentiment: Regional Anesthesia Reference at 89% against ASRA Coags's 9%. Regional Anesthesia Reference also leads on rating (5.0 vs 1.3) and monetization model (free vs subscription). ASRA Coags's advantage is ratings volume (407 vs 32). On price, update cadence, 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.

Regional Anesthesia Reference holds the better App Store score, 5.0 against 1.3. That said, the two scores are not equally well evidenced: ASRA Coags has 407 ratings behind it against 32, so its average is the more settled of the two. Written reviews point the same way: 9% of ASRA Coags's written reviews are positive against 89% of Regional Anesthesia Reference's.

ASRA Coags ships an update every 3 months, Regional Anesthesia Reference every 5 months. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ASRA Coags | Regional Anesthesia Reference |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.3 (407 ratings)](https://appshunter.io/ios/app/asra-coags/id858796572/reviews) | **[5.0 (32 ratings)](https://appshunter.io/ios/app/regional-anesthesia-reference/id1445967461/reviews)** |
| Number of ratings | **407** | 32 |
| Positive reviews | 8.9% of reviews | **88.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Subscription | **Free** |
| Size | 27 MB | 89 MB |
| Requires iOS | 13.4 | **8.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [American Society of Regional Anesthesia and Pain Medicine](https://appshunter.io/developer/858796575) | [University Of Washington](https://appshunter.io/developer/328228464) |

## What reviewers say

### ASRA Coags

[App page](https://appshunter.io/ios/app/asra-coags/id858796572)

This app provides quick access to anticoagulation guidelines for regional anesthesia and interventional pain procedures. It offers drug-specific summaries, recommendations based on procedure type, and detailed information on medication mechanisms and guideline documents.

**Highlights:** Anticoagulation guideline reference, Drug-specific summary information, Regional anesthesia guidelines, Interventional pain guidelines, Search by drug or procedure, Recommendations by block and intervention type

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is ASRA Coags free?

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

### Is Regional Anesthesia Reference free?

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

### Which has better reviews, ASRA Coags or Regional Anesthesia Reference?

Regional Anesthesia Reference is rated higher. ASRA Coags averages 1.3 out of 5 from 407 ratings, while Regional Anesthesia Reference averages 5.0 from 32 ratings.

### Do ASRA Coags or Regional Anesthesia Reference have ads?

Neither ASRA Coags nor Regional Anesthesia Reference shows ads.

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

ASRA Coags ships an update every 3 months, and Regional Anesthesia Reference every 5 months. Most recently, ASRA Coags was updated on October 16, 2026 and Regional Anesthesia Reference on October 11, 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.*