Comparison

MedDiffDx vs FOAM Cortex

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MedDiffDx

Read full description

MedDiffDx is an educational resource designed for medical students, trainees, and educators who want to strengthen their understanding of internal medicine and the principles of differential diagnosis. The app provides a structured study framework for approaching clinical problems based on presenting symptoms. Diseases are grouped by mechanisms, organ systems, or affected structures, following a style similar to how internal medicine specialists are trained to think. This organizational method makes complex material easier to understand, remember, and apply during study and discussion. Unlike a traditional reference book that focuses on detailed descriptions of individual conditions, MedDiffDx emphasizes the reasoning process of grouping and distinguishing diseases. This focus helps learners recognize important patterns and develop critical thinking skills that are valuable in medical education. Key Features • Symptom-based approach to exploring disease categories • Grouping of conditions by mechanism, organ system, or clinical features • Educational notes that highlight essential points for study • A framework inspired by the way internal medicine physicians are trained to organize differential diagnoses • Simple one-time purchase with access to all content — no subscription required Disclaimer MedDiffDx is intended for educational purposes only. The app does not provide medical advice, diagnosis, or treatment, and must not be used as a substitute for professional healthcare. Users should not rely on the app for managing real patients. All medical decisions should be made in consultation with qualified healthcare professionals. Future Development Our goal is to continuously update MedDiffDx, expanding the educational content and refining the user experience. We aim for the app to become one of the most useful study companions for learners of internal medicine worldwide. Feedback We value your input. If you have suggestions for improving the app — whether adding new presenting symptoms, refining existing content, or enhancing the interface — please contact us directly. Your feedback helps us improve MedDiffDx and ensure it remains a trusted educational tool for medical learners. Thank you for supporting MedDiffDx. We are committed to making it the best possible study resource for internal medicine.

About

FOAM Cortex

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
Read full description

FOAM Cortex is a modern, AI-enhanced emergency medicine reference designed for clinicians who need fast, trustworthy answers at the bedside. Built around high-quality FOAMed resources and a continuously expanding knowledge base, FOAM Cortex helps clinicians search, interpret, and apply information with confidence. Whether reviewing critical care topics, refining diagnostic reasoning, or preparing procedures, FOAM Cortex brings clarity and speed to emergency medicine decision-making. Key Features Instant AI Clinical Support Ask complex clinical questions and receive concise, evidence-aligned explanations grounded in trusted emergency medicine sources. Curated FOAMed Knowledge Base Search high-quality emergency medicine blogs, podcasts, and reference materials unified in one clean, searchable interface. Structured Clinical Summaries Access streamlined summaries of diagnoses, management steps, red flags, and algorithms optimized for real-world ED use. Integrated Source Transparency Each AI-generated response includes linked source material to maintain trust, accountability, and auditability. Modern, Fast Mobile Experience A distraction-free interface designed for speed, bedside usability, dark mode, and reliable performance. Search Across Topics and Modalities Find content from multiple FOAMed platforms, including blogs, podcasts, and educational repositories. Built for Emergency Medicine Clinicians Ideal for attending physicians, residents, NPs/PAs, medical students, and prehospital providers.

Screenshots

MedDiffDx4 screens
FOAM Cortex4 screens

Verdict

The call

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

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

MedDiffDx ships an update weekly, FOAM Cortex fortnightly. The most recent releases landed on September 13, 2026 and September 15, 2026 respectively.

Scorecard3 real differences · 7 level
MedDiffDx versus FOAM Cortex: the parameters behind the verdict, then further details
ParameterMedDiffDxFOAM Cortex
Price$3.99Free — better
Rating—5.0 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS16 — better16.4
Further details — not scored
Size13 MB60 MB
Age rating12+17+
Developerworawit tantaopasTom Fadial

In-app purchases

None

MedDiffDx

No in-app purchases

None

FOAM Cortex

No in-app purchases

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 weekly, and FOAM Cortex fortnightly. Most recently, MedDiffDx was updated on September 13, 2026 and FOAM Cortex on September 15, 2026.

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