# Differential Diagnosis | DDx vs Casemate

The clearest difference is rating: Casemate at 5.0 against Differential Diagnosis | DDx's 1.0. Casemate also leads on ratings volume (3 vs 1). Differential Diagnosis | DDx's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Differential Diagnosis | DDx sells 4 in-app purchases, starting at $2.99 per month and Casemate sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Casemate holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

## The numbers

| Metric | Differential Diagnosis | DDx | Casemate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/differential-diagnosis-ddx/id6738858194/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/casemate-practice/id6789640424/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Freemium | Freemium |
| Size | 71 MB | 39 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [RER MedApps](https://appshunter.io/developer/1720150558) | [ALI KHALED CHAHBANDAR](https://appshunter.io/developer/6789640426) |

## What reviewers say

### Differential Diagnosis | DDx

[App page](https://appshunter.io/ios/app/differential-diagnosis-ddx/id6738858194)

Master clinical reasoning and diagnostic precision with a comprehensive guide to symptoms, signs, and conditions. This app offers evidence-based algorithms, interactive case studies, and detailed investigation plans to sharpen diagnostic skills for healthcare professionals.

**Highlights:** Symptom-based differential diagnosis library, Evidence-based diagnostic algorithms, Targeted history taking, Clinical examination guidance, Investigation plans, Interactive case studies

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $19.99 | per year |
| Lifetime Premium | $24.99 | one-time |
| Premium Lifetime | $49.99 | one-time |


### Casemate

[App page](https://appshunter.io/ios/app/casemate-practice/id6789640424)

Practice patient history-taking with an AI-powered voice simulator. Receive detailed feedback on your questioning, clinical reasoning, and communication skills based on established frameworks. Track your progress over time with objective grading and links to relevant study materials.

**Highlights:** AI-powered patient encounters, Voice-first interaction, OSCE-style grading rubric, Cited feedback with transcript quotes, History and trend tracking, Links to study resources

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Casemate Pro Monthly | $9.99 | per month |
| Casemate Pro Yearly | $89.99 | per year |


## Frequently asked questions

### Is Differential Diagnosis | DDx free?

Differential Diagnosis | DDx is free to download, with in-app purchases available.

### Is Casemate free?

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

### Which has better reviews, Differential Diagnosis | DDx or Casemate?

Casemate is rated higher. Differential Diagnosis | DDx averages 1.0 out of 5 from 1 ratings, while Casemate averages 5.0 from 3 ratings.

### Do Differential Diagnosis | DDx or Casemate have ads?

Neither Differential Diagnosis | DDx nor Casemate shows ads.

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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.*