iTIVA Anesthesia vs ASRA Coags
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- TCI pump simulation
- Drug distribution modeling
- Pharmacokinetic models
- Infusion rate calculation
- Up to 3 drugs simultaneously
- End tidal gas calculation
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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
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.
- Anticoagulation guideline reference
- Drug-specific summary information
- Regional anesthesia guidelines
- Interventional pain guidelines
- Search by drug or procedure
- Recommendations by block and intervention type
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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
Verdict
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
Both are free to download. iTIVA Anesthesia sells 1 one-off in-app purchase. ASRA Coags asks for nothing beyond the download.
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.
Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 1, 2026.
| Parameter | iTIVA Anesthesia | ASRA Coags |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (45 ratings) — better | 1.3 (414 ratings) |
| Positive reviews | 90.5% of reviews — better | 8.9% of reviews |
| Number of ratings | 45 | 414 — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 29 MB | 27 MB |
| Age rating | 12+ | 17+ |
| Developer | ANESTESIARTE CALI SAS | American Society of Regional Anesthesia and Pain Medicine |
Customer experience
iTIVA Anesthesia
ASRA Coags
In-app purchases
iTIVA Anesthesia
- iTiva Pro$9.99
ASRA Coags
No in-app purchases
Questions
Is iTIVA Anesthesia free?
Is ASRA Coags free?
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