Comparison

ASRA Coags vs Regional Anesthesia Reference

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ASRA Coags

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
Read full description

The ASRA COAGS app has been updated with a universal code base and a fresh new look. This subscription-based app is $6.99/annually or free with ASRA Pain Medicine membership. The app transforms the American Society of Regional Anesthesia and Pain Medicine anticoagulation guidelines for Regional Anesthesia and Interventional Pain Procedures into a quick and easy reference for your practice. It provides rapid access to drug-specific summary information. This version combines the most current recommendations from two separate publications: 1. The 2025 guidelines “Regional anesthesia in the patient receiving antithrombotic or thrombolytic therapy: American Society of Regional Anesthesia and Pain Medicine Evidence- Based Guidelines (Fifth Edition)” published in Regional Anesthesia & Pain Medicine. 2. The 2018 Interventional Pain guidelines from the publication “Interventional Spine and Pain Procedures in Patients on Antiplatelet and Anticoagulant Medications (Second Edition); Guidelines From the American Society of Regional Anesthesia and Pain Medicine, the European Society of Regional Anaesthesia and Pain Therapy, the American Academy of Pain Medicine, the International Neuromodulation Society, the North American Neuromodulation Society, and the World Institute of Pain” published in Regional Anesthesia & Pain Medicine. The app provides direct access to both the regional guidelines and the pain guidelines, also allowing you to choose a default and focus on your specific practice area. Regional Guidelines: 1. Search for drugs by brand name or generic name. 2. Get recommendations based on the block type (e.g. neuraxial, peripheral, obstetric) and the intervention type (e.g. placing a block or removing a catheter). 3. Access more detailed information by using the Information "i" button: a. Mechanism of action for each drug. b. Executive summary for each drug. c. The full 2025 ASRA Pain Medicine regional guideline document. Pain Guidelines: 1. Search for drugs by brand name or generic name. Or start your search by procedure. 2. Get recommendations for: a. High, intermediate, and low risk procedures. b. Modifiers for patients at higher bleeding risk. c. Herbal medications. d. Antidepressant medications. e. When to restart medications after a procedure. 3. Access more detailed information for any drug by using the Information "i" button: a. Mechanism of action for each drug. b. Executive summary for each drug. c. The full 2018 ASRA Pain Medicine interventional pain guideline document. Members of ASRA Pain Medicine receive all society apps for free with their membership. To learn more or to join, visit asra.com/membership. Non-members have access to the content with a low-cost annual subscription.

About

Regional Anesthesia Reference

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
Read full description

Regional Anesthesia Reference provides a quick look at the anatomy, positioning, and techniques for placing regional nerve blocks under ultrasound guidance. This includes ultrasound images and anatomic descriptions, images of patient positioning, and videos of block placement. Current blocks include: Interscalene Supraclavicular Infraclavicular Axillary Femoral Adductor Canal Suprainguinal Fascia Iliaca TAP Rectus Sheath Sciatic (Popliteal) A local anesthetic drug calculator is also included for assistance with calculating maximum dosages and percent of max dose delivered for a given patient. This is a weight based calculator using dosages from Miller's Anesthesia or Morgan and Mikhail.

Screenshots

ASRA Coags4 screens
Regional Anesthesia Reference4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
ASRA Coags versus Regional Anesthesia Reference: the parameters behind the verdict, then further details
ParameterASRA CoagsRegional Anesthesia Reference
PriceFreeFree
Rating1.3 (407 ratings)5.0 (32 ratings) — better
Positive reviews8.9% of reviews88.9% of reviews — better
Number of ratings407 — better32
Update frequencyEvery 3 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.48.0 — better
Further details — not scored
Size27 MB89 MB
Age rating17+17+
DeveloperAmerican Society of Regional Anesthesia and Pain MedicineUniversity Of Washington

Customer experience

ASRA Coags

All ratings407 ratings
Positive6.6%
Neutral0.2%
Negative93.1%
Written reviews225 reviews
Positive8.9%
Neutral0.4%
Negative90.7%

Regional Anesthesia Reference

All ratings32 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive88.9%
Neutral11.1%
Negative0.0%

In-app purchases

None

ASRA Coags

No in-app purchases

None

Regional Anesthesia Reference

No in-app purchases

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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