Opioids Dosage Conversion vs StewardshAPP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Opioid dosage conversion
- Multiple drug support
- Multiple route support
- Breakthrough dosing calculator
- Incomplete cross tolerance option
- Instructional details
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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).
StewardshAPP
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StewardshAPP is an Education Solution. If we can Educate our Medical Staff Providers, Nursing Staff, Patients and their Families then we can change actions and outcomes. Many of the advances in medical treatment are dependent on the ability to fight infections with antibiotics. If that is lost the ability to safely offer people many life-saving and life improving modern medical advantages will be lost with it. The more that antibiotics are used the FASTER resistance develops and the less effective they are. 1 in 3 outpatient antibiotic prescriptions are unnecessary. The solution is Antibiotic Stewardship. Antibiotic Stewardship refers to coordinated efforts designed to measure and improve antibiotic use. In layman’s terms its shepherding antibiotics to ensure they retain their purpose. Antibiotic Stewardship Programs are usually set up and run by ID physician or Pharmacy specialists. Unfortunately there is a dwindling number of these specialists and they face an ever increasing need for their expertise and expansion of their responsibilities. Our solution is Stewardshapp. Stewardshapp is a ready-made, robust tool that can be set up and run without ID training or used to extend existing expertise.
Screenshots
Verdict
The clearest difference is update cadence: Opioids Dosage Conversion at every 4 months against StewardshAPP's every 35 months. StewardshAPP's advantage is iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Opioids Dosage Conversion ships an update every 4 months, StewardshAPP every 35 months. The most recent releases landed on September 17, 2026 and September 27, 2026 respectively.
| Parameter | Opioids Dosage Conversion | StewardshAPP |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (18 ratings) — better | — |
| Positive reviews | 77.8% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Every 4 months — better | Every 35 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 22 MB |
| Age rating | 17+ | 17+ |
| Developer | Chris Marcellino MD LLC | Rural Infectious Disease Specialist PLLC |
In-app purchases
Opioids Dosage Conversion
No in-app purchases
StewardshAPP
No in-app purchases
Questions
Is Opioids Dosage Conversion free?
Is StewardshAPP free?
Do Opioids Dosage Conversion or StewardshAPP have ads?
Which is updated more often, Opioids Dosage Conversion or StewardshAPP?
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