# DeepKnowledge vs FOAM Cortex

The clearest difference is review sentiment: FOAM Cortex at 100% against DeepKnowledge's 33%. FOAM Cortex also leads on rating (5.0 vs 4.3) and update cadence (fortnightly vs every 5 months). DeepKnowledge's advantage is monetization model (free vs ad-supported) and device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

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

FOAM Cortex holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews point the same way: 33% of DeepKnowledge's written reviews are positive against 100% of FOAM Cortex's.

DeepKnowledge ships an update every 5 months, FOAM Cortex fortnightly. The most recent releases landed on September 17, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | DeepKnowledge | FOAM Cortex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (3 ratings)](https://appshunter.io/ios/app/deepknowledge/id571246689/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/foam-cortex/id6756235238/reviews)** |
| Number of ratings | 3 | **9** |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | **Free** | Ad-supported |
| Size | 10 MB | 60 MB |
| Requires iOS | **8.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [TechKnowledge FZ LLC](https://appshunter.io/developer/571246692) | [Tom Fadial](https://appshunter.io/developer/1316852248) |

## What reviewers say

### DeepKnowledge

[App page](https://appshunter.io/ios/app/deepknowledge/id571246689)

Access and manage a vast e-library of institutional resources, including academic journals, databases, and reviews across various subjects. This mobile application offers the same features as its web counterpart for convenient, one-time login access to diverse collections.

**Highlights:** E-library content access, Institutional resource management, Access to academic journals, Browse databases, Access scientific reviews, Cloud-based services integration

**Features:** macOS Compatibility

**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 DeepKnowledge free?

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

### Is FOAM Cortex free?

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

### Which has better reviews, DeepKnowledge or FOAM Cortex?

FOAM Cortex is rated higher. DeepKnowledge averages 4.3 out of 5 from 3 ratings, while FOAM Cortex averages 5.0 from 9 ratings.

### Do DeepKnowledge or FOAM Cortex have ads?

Neither DeepKnowledge nor FOAM Cortex shows ads.

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

DeepKnowledge ships an update every 5 months, and FOAM Cortex fortnightly. Most recently, DeepKnowledge was updated on September 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.*