# Opioid Calculator vs Opioid Conversion Calculator

The clearest difference is price: Opioid Conversion Calculator at Free against Opioid Calculator's $0.99. Opioid Conversion Calculator also leads on update cadence (every 6 weeks vs every 6 months) and iOS requirement (13.0 vs 16.6). Opioid Calculator's advantage is review sentiment (81% vs 38%) and in-app purchases (none vs 3). On rating, ratings volume, ads and device support there is nothing between them.

Opioid Conversion Calculator is free to download; Opioid Calculator costs $0.99 up front. Opioid Conversion Calculator sells 3 in-app purchases, starting at $3.99 per month. Opioid Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.7 for Opioid Calculator against 3.7 for Opioid Conversion Calculator. Both are backed by a comparable volume of ratings — 9 and 17 respectively. Written reviews are what separate them: 81% of Opioid Calculator's written reviews are positive against 38% of Opioid Conversion Calculator's.

Opioid Calculator ships an update every 6 months, Opioid Conversion Calculator every 6 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Opioid Calculator | Opioid Conversion Calculator |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.7 (9 ratings)](https://appshunter.io/ios/app/opioid-calculator/id1039219870/reviews) | **[3.7 (17 ratings)](https://appshunter.io/ios/app/opioid-conversion-calculator/id6446010375/reviews)** |
| Number of ratings | 9 | **17** |
| Positive reviews | **81.3% of reviews** | 37.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 3 MB | 76 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [ANZCA](https://appshunter.io/developer/1039219869) | [Ayrial Beall](https://appshunter.io/developer/1735693360) |

## What reviewers say

### Opioid Calculator

[App page](https://appshunter.io/ios/app/opioid-calculator/id1039219870)

This medical tool calculates the total oral Morphine Equivalent Daily Dose (oMEDD) for patients using multiple opioids. It aims to simplify complex calculations for clinical practice, education, and research.

**Highlights:** Calculate oral Morphine Equivalent Daily Dose (oMEDD), Simplify calculations for combined opioids, Facilitate clinical practice, Support medical education, Aid research

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Opioid Conversion Calculator

[App page](https://appshunter.io/ios/app/opioid-conversion-calculator/id6446010375)

This medical app simplifies complex opioid conversion tasks for healthcare professionals. It offers extensive drug coverage, a visual safety indicator for dosages, and breakthrough dosing calculations. Available in multiple languages, it ensures accurate and safe pain management.

**Highlights:** Extensive drug coverage, Visual safety indicator, Breakthrough dosing calculations, Formulation conversions, Up-to-date pharmaceutical formulary, Multilingual support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Access | $3.99 | per month |
| Pro Access | $19.99 | per year |
| Lifetime Pro Access | $79.99 | one-time |


## Frequently asked questions

### Is Opioid Calculator free?

Opioid Calculator costs $0.99, with no in-app purchases.

### Is Opioid Conversion Calculator free?

Opioid Conversion Calculator is free to download, with in-app purchases available.

### Which has better reviews, Opioid Calculator or Opioid Conversion Calculator?

Opioid Conversion Calculator is rated higher. Opioid Calculator averages 3.7 out of 5 from 9 ratings, while Opioid Conversion Calculator averages 3.7 from 17 ratings.

### Do Opioid Calculator or Opioid Conversion Calculator have ads?

Neither Opioid Calculator nor Opioid Conversion Calculator shows ads.

### Which is updated more often, Opioid Calculator or Opioid Conversion Calculator?

Opioid Calculator ships an update every 6 months, and Opioid Conversion Calculator every 6 weeks. Most recently, Opioid Calculator was updated on November 2, 2026 and Opioid Conversion Calculator on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*