Comparison

iTIVA Anesthesia vs ASRA Coags

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

Head to head
About

iTIVA Anesthesia

This medical simulation app models drug distribution and TCI pump behavior for intravenous anesthesia. It helps users understand pharmacokinetics and calculate infusion rates based on various mathematical and pharmacokinetic models. Designed for educational purposes, it allows for up to three drug simulations simultaneously.

Highlights
  • TCI pump simulation
  • Drug distribution modeling
  • Pharmacokinetic models
  • Infusion rate calculation
  • Up to 3 drugs simultaneously
  • End tidal gas calculation
Features
Read full description

TRY IT FOR FREE, 10 USES WITHOUT TIME RESTRICTIONS! iTIVA is a simulation program that provides information about distribution of drugs based on mathematical models, and it simulate the behavior of a TCI pump (up to 3 drugs at time), obtaining infusion rates to reach and maintain a stable target effect site concentration, those schemes can be implemented in volumetric infusion pumps, and be guided with pharmacokinetics models. So now pharmacokinetics can become an easy topic and understanding what is going on during a infusion of a intravenous drug, too. Pharmacokinetic models iTIVA include 11 drugs and 40 pharmacokinetic models, that are updated continuously: -Remifentanil Adults: Minto
, Eleveld, Kim Kids: Rigby-Jones, Eleveld, Ross -Fentanyl
 Adults: Shafer, Scott
 Kids: Ginsberg, Encinas (Neonates) -Sufentanil
 Adults: Gepts, Bovill
 Kids: Greely -Alfentanil
 Adults: Maitre -Ketamine Adults: Domino, Clements-250 
 Kids: Herd, Elkomy -Procaine Adults: Seifen -Lidocaine
 Adults: Dyck, Schnider -Propofol
 Adults: Schnider, Eleveld, Marsh, Cortinez 
 Kids: Peadfusor, Kataria, Eleveld -Dexmedetomidine 
 Adults: Hannivoort, Dyck, Lin, Venn
 Kids: Potts -Midazolam
 Adults: Albrecht, Greenblatt -Tranexamic
 Adults: Grassin-Delyle Kids: Goobie, Grassun-Delyle iTIVA also calculate the end tidal (Et) for Isoflurane, Sevoflurane and Desflurane for the MAC age, with the use of the Mapleson equation. Created by David Ramirez MD, Cali - Colombia. Universidad de Valle. david@itiva.co • WARNING: iTIVA is not designed to handle intravenous drugs for individual patients. Its use is limited to educational purposes to demonstrate pharmacokinetic principles when performing intravenous anesthesia. Therefore the user assumes all risks from the use of this application for clinical purposes. Infusion schemes are obtained from concentrations based on models published in the medical literature; therefore concentrations achieved from these schemes can vary widely, in the same manner for clinical effects. This application should only be used by people with extensive knowledge in Anesthesiology. We don't collect any information about you, for more info about our privacy policy, refer to http://itiva.co/privacy.html

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.

Screenshots

iTIVA Anesthesia4 screens
ASRA Coags4 screens

Verdict

The call

The clearest difference is review sentiment: iTIVA Anesthesia at 90% against ASRA Coags's 9%. iTIVA Anesthesia also leads on rating (4.6 vs 1.3) and iOS requirement (9.0 vs 13.4). ASRA Coags's advantage is in-app purchases (none vs 1) and ratings volume (414 vs 45). On price, update cadence, ads and device support 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. iTIVA Anesthesia sells 1 one-off in-app purchase. ASRA Coags asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iTIVA Anesthesia holds the better App Store score, 4.6 against 1.3. That said, the two scores are not equally well evidenced: ASRA Coags has 414 ratings behind it against 45, so its average is the more settled of the two. Written reviews point the same way: 90% of iTIVA Anesthesia's written reviews are positive against 9% of ASRA Coags's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 1, 2026.

Scorecard6 real differences · 4 level
iTIVA Anesthesia versus ASRA Coags: the parameters behind the verdict, then further details
ParameteriTIVA AnesthesiaASRA Coags
PriceFreeFree
Rating4.6 (45 ratings) — better1.3 (414 ratings)
Positive reviews90.5% of reviews — better8.9% of reviews
Number of ratings45414 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better13.4
Further details — not scored
Size29 MB27 MB
Age rating12+17+
DeveloperANESTESIARTE CALI SASAmerican Society of Regional Anesthesia and Pain Medicine

Customer experience

iTIVA Anesthesia

All ratings45 ratings
Positive88.9%
Neutral2.2%
Negative8.9%
Written reviews21 reviews
Positive90.5%
Neutral0.0%
Negative9.5%

ASRA Coags

All ratings407 ratings
Positive6.6%
Neutral0.2%
Negative93.1%
Written reviews236 reviews
Positive8.9%
Neutral0.8%
Negative90.3%

In-app purchases

1 purchases

iTIVA Anesthesia

One-time1
  • iTiva Pro$9.99
None

ASRA Coags

No in-app purchases

Questions

Is iTIVA Anesthesia free?
iTIVA Anesthesia is free to download, with in-app purchases available.
Is ASRA Coags free?
ASRA Coags is free to download, with no in-app purchases.
Which has better reviews, iTIVA Anesthesia or ASRA Coags?
iTIVA Anesthesia is rated higher. iTIVA Anesthesia averages 4.6 out of 5 from 45 ratings, while ASRA Coags averages 1.3 from 414 ratings.
Do iTIVA Anesthesia or ASRA Coags have ads?
Neither iTIVA Anesthesia nor ASRA Coags shows ads.
Which is updated more often, iTIVA Anesthesia or ASRA Coags?
iTIVA Anesthesia ships an update every 3 months, and ASRA Coags every 3 months. Most recently, iTIVA Anesthesia was updated on November 1, 2026 and ASRA Coags on November 1, 2026.

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