# Opioids Dosage Conversion vs Contraception

Opioids Dosage Conversion and Contraception both sit at 4.3 stars, but that hides the real split: 78% of Opioids Dosage Conversion's written reviews are positive against 64% of Contraception's. On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.3 for Opioids Dosage Conversion against 4.3 for Contraception. Both are backed by a comparable volume of ratings — 18 and 27 respectively. Written reviews are what separate them: 78% of Opioids Dosage Conversion's written reviews are positive against 64% of Contraception's.

Opioids Dosage Conversion ships an update every 4 months, Contraception every 7 months. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Opioids Dosage Conversion | Contraception |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (18 ratings)](https://appshunter.io/ios/app/opioids-dosage-conversion/id382383903/reviews) | **[4.3 (27 ratings)](https://appshunter.io/ios/app/contraception/id595752188/reviews)** |
| Number of ratings | 18 | **27** |
| Positive reviews | **77.8% of reviews** | 63.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 2 MB | 56 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Chris Marcellino MD LLC](https://appshunter.io/developer/1161719220) | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) |

## 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


### Contraception

[App page](https://appshunter.io/ios/app/contraception/id595752188)

This app provides comprehensive guidelines on contraceptive method use based on medical eligibility criteria and selected practice recommendations. It assists healthcare providers in counseling individuals and couples on family planning choices, covering over 60 medical conditions and numerous clinical situations.

**Highlights:** U.S. Medical Eligibility Criteria (MEC), U.S. Selected Practice Recommendations (SPR), Covers over 60 characteristics/conditions, Addresses numerous clinical situations, Aids healthcare provider counseling, Based on CDC Morbidity and Mortality Weekly Report

**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 Contraception free?

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

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

Contraception is rated higher. Opioids Dosage Conversion averages 4.3 out of 5 from 18 ratings, while Contraception averages 4.3 from 27 ratings.

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

Neither Opioids Dosage Conversion nor Contraception shows ads.

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

Opioids Dosage Conversion ships an update every 4 months, and Contraception every 7 months. Most recently, Opioids Dosage Conversion was updated on October 16, 2026 and Contraception on October 17, 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.*