Comparison

Opioids Dosage Conversion vs MGI Associates, PC

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

MGI Associates, PC

This medical app provides information on gastrointestinal disorders and diseases. It offers insights into digestive tract health and wellness, with services including consultations and endoscopic procedures.

Highlights
  • Gastrointestinal disorder information
  • Digestive tract health promotion
  • Consultative services
  • Endoscopic services
Features
Read full description

Midwest Gastrointestinal Associates, PC (MGI) is a private practice medical group providing the highest quality care to our patients and service for our referring physicians across the region. Our gastroenterologists diagnose and treat disorders and diseases of the digestive tract, including the esophagus, stomach, small intestine, gallbladder, liver, pancreas, and colon. The practice also strives to promote the gastrointestinal health and wellness of our patients. Our physicians provide consultative and endoscopic services.

Screenshots

Opioids Dosage Conversion4 screens
MGI Associates, PC2 screens

Verdict

The call

The clearest difference is rating: MGI Associates, PC at 5.0 against Opioids Dosage Conversion's 4.3. MGI Associates, PC also leads on review sentiment (100% vs 78%) and update cadence (every 2 months vs every 4 months). Opioids Dosage Conversion's advantage is ratings volume (19 vs 1). On price, ads, in-app purchases and monetization model 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

MGI Associates, PC holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Opioids Dosage Conversion has 19 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 78% of Opioids Dosage Conversion's written reviews are positive against 100% of MGI Associates, PC's.

UpkeepUpdate frequency

Opioids Dosage Conversion ships an update every 4 months, MGI Associates, PC every 2 months. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

Scorecard4 real differences · 6 level
Opioids Dosage Conversion versus MGI Associates, PC: the parameters behind the verdict, then further details
ParameterOpioids Dosage ConversionMGI Associates, PC
PriceFreeFree
Rating4.3 (19 ratings)5.0 (1 ratings) — better
Positive reviews77.8% of reviews100.0% of reviews — better
Number of ratings19 — better1
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.614.2 — better
Further details — not scored
Size2 MB29 MB
Age rating17+4+
DeveloperChris Marcellino MD LLCVolano Software Company

Customer experience

Opioids Dosage Conversion

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

MGI Associates, PC

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Opioids Dosage Conversion

No in-app purchases

None

MGI Associates, PC

No in-app purchases

Questions

Is Opioids Dosage Conversion free?
Opioids Dosage Conversion is free to download, with no in-app purchases.
Is MGI Associates, PC free?
MGI Associates, PC is free to download, with no in-app purchases.
Which has better reviews, Opioids Dosage Conversion or MGI Associates, PC?
MGI Associates, PC is rated higher. Opioids Dosage Conversion averages 4.3 out of 5 from 19 ratings, while MGI Associates, PC averages 5.0 from 1 ratings.
Do Opioids Dosage Conversion or MGI Associates, PC have ads?
Neither Opioids Dosage Conversion nor MGI Associates, PC shows ads.
Which is updated more often, Opioids Dosage Conversion or MGI Associates, PC?
Opioids Dosage Conversion ships an update every 4 months, and MGI Associates, PC every 2 months. Most recently, Opioids Dosage Conversion was updated on October 21, 2026 and MGI Associates, PC on October 13, 2026.

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