# MedDiffDx vs FOAM Cortex

The clearest difference is price: FOAM Cortex at Free against MedDiffDx's $3.99. MedDiffDx's advantage is update cadence (every 6 days vs fortnightly) and device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

FOAM Cortex is free to download; MedDiffDx costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MedDiffDx ships an update every 6 days, FOAM Cortex fortnightly. The most recent releases landed on October 17, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | MedDiffDx | FOAM Cortex |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/foam-cortex/id6756235238/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Fortnightly |
| Monetization | — | Ad-supported |
| Size | 6 MB | 60 MB |
| Requires iOS | **16** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [worawit tantaopas](https://appshunter.io/developer/1833368157) | [Tom Fadial](https://appshunter.io/developer/1316852248) |

## What reviewers say

### MedDiffDx

[App page](https://appshunter.io/ios/app/meddiffdx-internal-medicine/id6751080004)

**Features:** Vision Pro support

**In-app purchases:** none


### FOAM Cortex

[App page](https://appshunter.io/ios/app/foam-cortex/id6756235238)

An AI-powered reference tool for emergency medicine clinicians, providing fast, trustworthy answers at the bedside. It leverages high-quality FOAMed resources and an expanding knowledge base to help users search, interpret, and apply information with confidence.

**Highlights:** Instant AI clinical support, Curated FOAMed knowledge base, Structured clinical summaries, Integrated source transparency, Fast mobile experience, Search across topics and modalities

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

**In-app purchases:** none


## Frequently asked questions

### Is MedDiffDx free?

MedDiffDx costs $3.99, with no in-app purchases.

### Is FOAM Cortex free?

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

### Do MedDiffDx or FOAM Cortex have ads?

Neither MedDiffDx nor FOAM Cortex shows ads.

### Which is updated more often, MedDiffDx or FOAM Cortex?

MedDiffDx ships an update every 6 days, and FOAM Cortex fortnightly. Most recently, MedDiffDx was updated on October 17, 2026 and FOAM Cortex on October 2, 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.*