# Eye Emergency Manual vs Opioid Conversion Calculator

The clearest difference is review sentiment: Eye Emergency Manual at 100% against Opioid Conversion Calculator's 38%. Eye Emergency Manual also leads on rating (5.0 vs 3.7) and in-app purchases (none vs 3). Opioid Conversion Calculator's advantage is update cadence (every 6 weeks vs every 9 months) and ratings volume (17 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. Opioid Conversion Calculator sells 3 in-app purchases, starting at $3.99 per month. Eye Emergency Manual asks for nothing beyond the download.

Eye Emergency Manual holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Opioid Conversion Calculator has 17 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Eye Emergency Manual's written reviews are positive against 38% of Opioid Conversion Calculator's.

Eye Emergency Manual ships an update every 9 months, Opioid Conversion Calculator every 6 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Eye Emergency Manual | Opioid Conversion Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/eye-emergency-manual/id777216623/reviews)** | [3.7 (17 ratings)](https://appshunter.io/ios/app/opioid-conversion-calculator/id6446010375/reviews) |
| Number of ratings | 2 | **17** |
| Positive reviews | **100.0% of reviews** | 37.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 66 MB | 76 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Agency for Clinical Innovation](https://appshunter.io/developer/777216626) | [Ayrial Beall](https://appshunter.io/developer/1735693360) |

## What reviewers say

### Eye Emergency Manual

[App page](https://appshunter.io/ios/app/eye-emergency-manual/id777216623)

A quick guide for medical professionals on recognizing and managing common eye emergencies. It assists in patient triage and provides detailed information on history, examination, treatment, and follow-up for various eye conditions.

**Highlights:** Recognize signs and symptoms, Manage common eye emergencies, Patient triage assistance, Anatomy and workup sections, Detailed condition management, Referral guidance

**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 Eye Emergency Manual free?

Eye Emergency Manual is free to download, 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, Eye Emergency Manual or Opioid Conversion Calculator?

Eye Emergency Manual is rated higher. Eye Emergency Manual averages 5.0 out of 5 from 2 ratings, while Opioid Conversion Calculator averages 3.7 from 17 ratings.

### Do Eye Emergency Manual or Opioid Conversion Calculator have ads?

Neither Eye Emergency Manual nor Opioid Conversion Calculator shows ads.

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

Eye Emergency Manual ships an update every 9 months, and Opioid Conversion Calculator every 6 weeks. Most recently, Eye Emergency Manual was updated on October 26, 2026 and Opioid Conversion Calculator on October 27, 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.*