# Case Files vs Guide to Diagnostic Tests

The clearest difference is review sentiment: Case Files at 33% against Guide to Diagnostic Tests's 0%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Case Files sells 6 in-app purchases, starting at $7.99 per 7 days and Guide to Diagnostic Tests sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Case Files ships an update every 19 months, Guide to Diagnostic Tests every 9 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Case Files | Guide to Diagnostic Tests |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (35 ratings)](https://appshunter.io/ios/app/guide-to-diagnostic-tests/id910130424/reviews)** |
| Number of ratings | — | **35** |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 9 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 21 MB | 10 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Expanded Apps](https://appshunter.io/developer/313709778) | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) |

## What reviewers say

### Case Files

[App page](https://appshunter.io/ios/app/case-files-pathology/id457739821)

This app provides over 50 clinical pathology cases with USMLE-style questions to help medical students learn through real-world patient scenarios. It offers interactive features, study modes, and progress tracking to improve exam scores and clinical problem-solving skills.

**Highlights:** 50+ clinical cases with USMLE-style questions, Interactive case discussions and comprehension questions, Study, Exam, and Bookmark modes for question review, Progress tracking and score storage, Clinical pearls and approach to problem-solving, iCloud support for multi-device use

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week | $7.99 | per 7 days |
| Weekly Access | $11.99 | per 7 days |
| 1 Month | $18.99 | per month |
| Monthly Access | $19.99 | per month |
| 1 Year | $69.99 | per year |
| Lifetime | $39.99 | one-time |


### Guide to Diagnostic Tests

[App page](https://appshunter.io/ios/app/guide-to-diagnostic-tests/id910130424)

Access evidence-based information on over 450 diagnostic tests, including lab work, imaging, and therapeutic monitoring. This resource helps healthcare professionals quickly find answers to common questions about test selection, interpretation, and patient preparation.

**Highlights:** 450+ diagnostic tests, Evidence-based recommendations, Algorithms, tables, and charts, PubMed links, Custom notes and highlighting, Full-text search, Favorites for bookmarking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pocket Guide to Diagnostic Tests | $54.99 | one-time |


## Frequently asked questions

### Is Case Files free?

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

### Is Guide to Diagnostic Tests free?

Guide to Diagnostic Tests is free to download, with in-app purchases available.

### Do Case Files or Guide to Diagnostic Tests have ads?

Neither Case Files nor Guide to Diagnostic Tests shows ads.

### Which is updated more often, Case Files or Guide to Diagnostic Tests?

Case Files ships an update every 19 months, and Guide to Diagnostic Tests every 9 months. Most recently, Case Files was updated on October 23, 2026 and Guide to Diagnostic Tests on October 24, 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.*