Comparison

Opioids Dosage Conversion vs Pedi Crisis 2.0

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

Pedi Crisis 2.0

This medical reference app provides interactive algorithms and drug dosage calculators for 26 pediatric crisis situations. It offers quick access to crucial details for emergency treatment, helping healthcare professionals make informed decisions.

Highlights
  • 26 pediatric crisis algorithms
  • Interactive checklists
  • Drug dosage summaries
  • Patient-specific dosage calculation
  • Quick reference tool
Features
Read full description

The Society for Pediatric Anesthesia (SPA) presents Pedi Crisis 2.0! This app contains peer-reviewed algorithms for treating 26 pediatric crisis situations. As an interactive version of the SPA critical event checklists, crucial details for these 26 pediatric critical events are now just a ‘tap’ away on your pocket device! Quick reference drug dosage summaries are available for each emergency. Enter the patient’s weight to automatically calculate patient-specific dosages.

Screenshots

Opioids Dosage Conversion4 screens
Pedi Crisis 2.03 screens

Verdict

The call

The clearest difference is rating: Pedi Crisis 2.0 at 4.6 against Opioids Dosage Conversion's 4.3. Pedi Crisis 2.0 also leads on iOS requirement (12.0 vs 15.6). Opioids Dosage Conversion's advantage is update cadence (every 4 months vs every 15 months) and review sentiment (78% vs 67%). On price, ratings volume, ads and in-app purchases 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

Pedi Crisis 2.0 holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 19 and 17 respectively. Written reviews complicate that: 78% of Opioids Dosage Conversion's written reviews are positive against 67% of Pedi Crisis 2.0's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Opioids Dosage Conversion ships an update every 4 months, Pedi Crisis 2.0 every 15 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Opioids Dosage Conversion versus Pedi Crisis 2.0: the parameters behind the verdict, then further details
ParameterOpioids Dosage ConversionPedi Crisis 2.0
PriceFreeFree
Rating4.3 (19 ratings)4.6 (17 ratings) — better
Positive reviews77.8% of reviews — better66.7% of reviews
Number of ratings19 — better17
Update frequencyEvery 4 months — betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size2 MB6 MB
Age rating17+17+
DeveloperChris Marcellino MD LLCSociety for Pediatric Anesthesia

Customer experience

Opioids Dosage Conversion

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

Pedi Crisis 2.0

All ratings17 ratings
Positive88.2%
Neutral5.9%
Negative5.9%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Opioids Dosage Conversion

No in-app purchases

None

Pedi Crisis 2.0

No in-app purchases

Questions

Is Opioids Dosage Conversion free?
Opioids Dosage Conversion is free to download, with no in-app purchases.
Is Pedi Crisis 2.0 free?
Pedi Crisis 2.0 is free to download, with no in-app purchases.
Which has better reviews, Opioids Dosage Conversion or Pedi Crisis 2.0?
Pedi Crisis 2.0 is rated higher. Opioids Dosage Conversion averages 4.3 out of 5 from 19 ratings, while Pedi Crisis 2.0 averages 4.6 from 17 ratings.
Do Opioids Dosage Conversion or Pedi Crisis 2.0 have ads?
Neither Opioids Dosage Conversion nor Pedi Crisis 2.0 shows ads.
Which is updated more often, Opioids Dosage Conversion or Pedi Crisis 2.0?
Opioids Dosage Conversion ships an update every 4 months, and Pedi Crisis 2.0 every 15 months. Most recently, Opioids Dosage Conversion was updated on October 21, 2026 and Pedi Crisis 2.0 on October 24, 2026.

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