# Guide to Diagnostic Tests vs Explain Medicine

The clearest difference is in-app purchases: Explain Medicine at none against Guide to Diagnostic Tests's 1. Explain Medicine also leads on review sentiment (33% vs 0%) and update cadence (every 3 months vs every 9 months). Guide to Diagnostic Tests's advantage is rating (4.6 vs 4.2). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Guide to Diagnostic Tests sells 1 one-off in-app purchase. Explain Medicine asks for nothing beyond the download.

Guide to Diagnostic Tests holds the better App Store score, 4.6 against 4.2. Both are backed by a comparable volume of ratings — 35 and 13 respectively. Written reviews complicate that: 0% of Guide to Diagnostic Tests's written reviews are positive against 33% of Explain Medicine's, so the app with the better star average is not the one people write more warmly about.

Guide to Diagnostic Tests ships an update every 9 months, Explain Medicine every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Guide to Diagnostic Tests | Explain Medicine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (35 ratings)](https://appshunter.io/ios/app/guide-to-diagnostic-tests/id910130424/reviews)** | [4.2 (13 ratings)](https://appshunter.io/ios/app/explain-medicine/id1356577412/reviews) |
| Number of ratings | **35** | 13 |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 10 MB | 89 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [Medical Joyworks LLC](https://appshunter.io/developer/803816939) |

## What reviewers say

### 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 |


### Explain Medicine

[App page](https://appshunter.io/ios/app/explain-medicine/id1356577412)

A quick medical reference for professionals and students, offering evidence-based explanations for over 700 diseases. Ideal for rapid information retrieval during rounds or exam preparation.

**Highlights:** Medical reference for professionals, Explanations for over 700 diseases, Evidence-based information, Fast and easy to use, Designed for students, Quick answers for rounds

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

**In-app purchases:** none


## Frequently asked questions

### Is Guide to Diagnostic Tests free?

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

### Is Explain Medicine free?

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

### Which has better reviews, Guide to Diagnostic Tests or Explain Medicine?

Guide to Diagnostic Tests is rated higher. Guide to Diagnostic Tests averages 4.6 out of 5 from 35 ratings, while Explain Medicine averages 4.2 from 13 ratings.

### Do Guide to Diagnostic Tests or Explain Medicine have ads?

Neither Guide to Diagnostic Tests nor Explain Medicine shows ads.

### Which is updated more often, Guide to Diagnostic Tests or Explain Medicine?

Guide to Diagnostic Tests ships an update every 9 months, and Explain Medicine every 3 months. Most recently, Guide to Diagnostic Tests was updated on November 1, 2026 and Explain Medicine on November 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.*