# EMDEX Reference vs EDD

The clearest difference is review sentiment: EDD at 100% against EMDEX Reference's 50%. EDD also leads on in-app purchases (none vs 3) and update cadence (every 2 weeks vs every 5 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. EMDEX Reference sells 3 in-app purchases, starting at $0.99 per 7 days. EDD asks for nothing beyond the download.

EMDEX Reference ships an update every 5 months, EDD every 2 weeks. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | EMDEX Reference | EDD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/emdex-reference/id1441248045/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Ad-supported | Ad-supported |
| Size | 53 MB | 4 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [EMDEX Limited](https://appshunter.io/developer/1441248044) | [Kunlepaints Ltd](https://appshunter.io/developer/1678007873) |

## What reviewers say

### EMDEX Reference

[App page](https://appshunter.io/ios/app/emdex-reference/id1441248045)

This app provides comprehensive drug and therapeutic information for Nigeria, including essential medicines, treatment guidelines, and drug product details. It features an interaction checker, diagnosis and management of prevalent diseases, and a natural health products compendium. Designed for healthcare professionals, it offers enhanced search and detailed drug information.

**Highlights:** Comprehensive drug product database, Essential Medicines List, Standard Treatment Guideline recommendations, Interaction checker, Natural health products compendium, Diagnosis and management of prevalent diseases, Rapid drug news and safety alerts

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $0.99 | per 7 days |
| Querterly Plan | $6.99 | per 3 months |
| Yearly Plan | $24.99 | per year |


### EDD

[App page](https://appshunter.io/ios/app/edd-ega-calculator/id6446463842)

This medical app helps calculate Estimated Due Date (EDD) and Estimated Gestational Age (EGA). It offers two methods for calculation: using the Last Menstrual Period (LMP) or a provided EDD from Ultrasound (USS). The interface is designed for simplicity and speed.

**Highlights:** Calculate EDD using LMP, Calculate EDD using USS, Calculate EGA, Simple interface, Fast calculations

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

**In-app purchases:** none


## Frequently asked questions

### Is EMDEX Reference free?

EMDEX Reference is free to download, with in-app purchases available.

### Is EDD free?

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

### Do EMDEX Reference or EDD have ads?

Both EMDEX Reference and EDD show ads.

### Which is updated more often, EMDEX Reference or EDD?

EMDEX Reference ships an update every 5 months, and EDD every 2 weeks. Most recently, EMDEX Reference was updated on September 10, 2026 and EDD on September 21, 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.*