# Opioids Dosage Conversion vs WarfarinGuide

The clearest difference is rating: Opioids Dosage Conversion at 4.3 against WarfarinGuide's 3.8. Opioids Dosage Conversion also leads on update cadence (every 4 months vs every 11 months) and ratings volume (18 vs 5). WarfarinGuide's advantage is review sentiment (90% vs 78%) and iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Opioids Dosage Conversion holds the better App Store score, 4.3 against 3.8. Both are backed by a comparable volume of ratings — 18 and 5 respectively. Written reviews complicate that: 78% of Opioids Dosage Conversion's written reviews are positive against 90% of WarfarinGuide's, so the app with the better star average is not the one people write more warmly about.

Opioids Dosage Conversion ships an update every 4 months, WarfarinGuide every 11 months. The most recent releases landed on September 17, 2026 and July 25, 2026 respectively.

## The numbers

| Metric | Opioids Dosage Conversion | WarfarinGuide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (18 ratings)](https://appshunter.io/ios/app/opioids-dosage-conversion/id382383903/reviews)** | [3.8 (5 ratings)](https://appshunter.io/ios/app/warfaringuide/id403959804/reviews) |
| Number of ratings | **18** | 5 |
| Positive reviews | 77.8% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 11 months |
| Monetization | Free | Free |
| Size | 2 MB | 1 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Chris Marcellino MD LLC](https://appshunter.io/developer/1161719220) | [Joshua D. steinberg](https://appshunter.io/developer/374154837) |

## What reviewers say

### Opioids Dosage Conversion

[App page](https://appshunter.io/ios/app/opioids-dosage-conversion/id382383903)

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:** macOS Compatibility

**In-app purchases:** none


### WarfarinGuide

[App page](https://appshunter.io/ios/app/warfaringuide/id403959804)

This app provides evidence-based resources for anticoagulation management with Warfarin. It includes guidelines on indications, INR targets, and treatment duration, along with protocols for dose adjustment and initiation. It also offers guidance for peri-operative Warfarin management.

**Highlights:** Warfarin dose adjustment protocols, Warfarin initiation protocols, INR target guidelines, Peri-operative Warfarin management, ACCP guideline references, Point of care guides

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Opioids Dosage Conversion free?

Opioids Dosage Conversion is free to download, with no in-app purchases.

### Is WarfarinGuide free?

WarfarinGuide is free to download, with no in-app purchases.

### Which has better reviews, Opioids Dosage Conversion or WarfarinGuide?

Opioids Dosage Conversion is rated higher. Opioids Dosage Conversion averages 4.3 out of 5 from 18 ratings, while WarfarinGuide averages 3.8 from 5 ratings.

### Do Opioids Dosage Conversion or WarfarinGuide have ads?

Neither Opioids Dosage Conversion nor WarfarinGuide shows ads.

### Which is updated more often, Opioids Dosage Conversion or WarfarinGuide?

Opioids Dosage Conversion ships an update every 4 months, and WarfarinGuide every 11 months. Most recently, Opioids Dosage Conversion was updated on September 17, 2026 and WarfarinGuide on July 25, 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.*