Comparison

Opioids Dosage Conversion vs MyABFM

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

Head to head
About

Opioids Dosage Conversion

This app is a calculator for trained medical professionals to convert opioid analgesic dosages. It supports various common opioids and administration routes, offering features like breakthrough dosing and cross-tolerance calculations.

Highlights
  • Opioid dosage conversion
  • Multiple drug support
  • Multiple route support
  • Breakthrough dosing calculator
  • Incomplete cross tolerance option
  • Instructional details
Features
Read full description

Opioids by Chris Marcellino MD and Norris Vivatrat MD is an opioid analgesic dosage conversion calculator for use by trained medical professionals. The application supports conversion to and from opioids commonly prescribed and used in U.S. hospitals orally, parenterally, or transdermally, including morphine, codeine, hydromorphone, hydrocodone, fentanyl, methadone, oxycodone and oxymorphone. The application is intended to help and instruct in the process of conversion of opioid regimens. • Native support for iPhone, iPad and iPod touch • Multiple route support • Multiple drug support • Incomplete cross tolerance option • Breakthrough dosing calculator • Provides instructional details about each calculation • Saves last calculation on exit • Supports landscape and portrait modes • Reference guide By Professor EBM, the Internal Medicine Residency Teaching Resource for Evidence-Based Medicine: http://www.professorebm.com/, a resource of the Santa Clara Valley Medical Center. While effort has been made to ensure that calculations are accurate and that conversion factors are in accordance with current accepted medical practices, use of this application is entirely at your own risk. This application should only be used by trained medical professionals and all results should be double checked by hand. Use of the app requires acceptance of the terms of use that are included with the application. Please send support requests and feedback using the link in the About tab of the app, though as a free academic tool we only have limited resources to address new feature requests. Opioid equipotency data is taken from CAPC conversion values except where noted (see the reference tab in the app.) CAPC values are as published in the Center to Advance Palliative Care Prescribing Opioids: A Reference Guide curriculum, which are adapted from McPherson ML. Demystifying Opioid Conversion Calculations: A Guide for Effective Dosing, 2nd ed. American Society of Health-System Pharmacists, Bethesda, Maryland, 2018. EPEC values are as published in EPEC-O Participants Handbook, 2005. Chris Marcellino, MD — Mayo Clinic Norris Vivatrat, MD — UCSD Medical Center Special thanks to Dr. Tom Mouser (EveryStep, Des Moines, IA) and Dr. David Rand (UVM Medical Center).

About

MyABFM

Access certification requirements and engage with certification activities through a mobile-friendly interface. Designed for ABFM Diplomates, residents, and users to manage their professional development.

Highlights
  • Access certification requirements
  • Interact with certification activities
  • Mobile-friendly interface
  • For ABFM Diplomates and residents
Features
Read full description

The MyABFM Portfolio app is for ABFM Diplomates, residents, and other ABFM users to access their certification requirements and interact with certification activities in a mobile-friendly interface.

Screenshots

Opioids Dosage Conversion4 screens
MyABFM4 screens

Verdict

The call

The clearest difference is review sentiment: Opioids Dosage Conversion at 78% against MyABFM's 25%. Opioids Dosage Conversion also leads on rating (4.3 vs 2.5). On price, ratings volume, update cadence and ads 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

Opioids Dosage Conversion holds the better App Store score, 4.3 against 2.5. Both are backed by a comparable volume of ratings — 18 and 22 respectively. Written reviews point the same way: 78% of Opioids Dosage Conversion's written reviews are positive against 25% of MyABFM's.

UpkeepUpdate frequency

Opioids Dosage Conversion ships an update every 4 months, MyABFM every 5 months. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 8 level
Opioids Dosage Conversion versus MyABFM: the parameters behind the verdict, then further details
ParameterOpioids Dosage ConversionMyABFM
PriceFreeFree
Rating4.3 (18 ratings) — better2.5 (22 ratings)
Positive reviews77.8% of reviews — better25.0% of reviews
Number of ratings1822 — better
Update frequencyEvery 4 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size2 MB22 MB
Age rating17+17+
DeveloperChris Marcellino MD LLCAmerican Board of Family Medicine, Inc.

Customer experience

Opioids Dosage Conversion

All ratings17 ratings
Positive82.4%
Neutral5.9%
Negative11.8%
Written reviews45 reviews
Positive77.8%
Neutral13.3%
Negative8.9%

MyABFM

All ratings22 ratings
Positive31.8%
Neutral4.5%
Negative63.6%
Written reviews12 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

None

Opioids Dosage Conversion

No in-app purchases

None

MyABFM

No in-app purchases

Questions

Is Opioids Dosage Conversion free?
Opioids Dosage Conversion is free to download, with no in-app purchases.
Is MyABFM free?
MyABFM is free to download, with no in-app purchases.
Which has better reviews, Opioids Dosage Conversion or MyABFM?
Opioids Dosage Conversion is rated higher. Opioids Dosage Conversion averages 4.3 out of 5 from 18 ratings, while MyABFM averages 2.5 from 22 ratings.
Do Opioids Dosage Conversion or MyABFM have ads?
Neither Opioids Dosage Conversion nor MyABFM shows ads.
Which is updated more often, Opioids Dosage Conversion or MyABFM?
Opioids Dosage Conversion ships an update every 4 months, and MyABFM every 5 months. Most recently, Opioids Dosage Conversion was updated on September 17, 2026 and MyABFM on September 9, 2026.

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