# Guide to Diagnostic Tests vs Anesthesiology, Third Edition

The clearest difference is price: Guide to Diagnostic Tests at Free against Anesthesiology, Third Edition's $124.99. Guide to Diagnostic Tests also leads on update cadence (every 9 months vs every 32 months). Anesthesiology, Third Edition's advantage is in-app purchases (none vs 1) and iOS requirement (10.0 vs 15.0). On ads and device support there is nothing between them.

Guide to Diagnostic Tests is free to download; Anesthesiology, Third Edition costs $124.99 up front. Guide to Diagnostic Tests sells 1 one-off in-app purchase. Anesthesiology, Third Edition asks for nothing beyond the download.

Guide to Diagnostic Tests ships an update every 9 months, Anesthesiology, Third Edition every 32 months. The most recent releases landed on November 8, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Guide to Diagnostic Tests | Anesthesiology, Third Edition |
| --- | --- | --- |
| Price | **Free** | $124.99 |
| Rating | **[4.5 (36 ratings)](https://appshunter.io/ios/app/guide-to-diagnostic-tests/id910130424/reviews)** | — |
| Number of ratings | **36** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 32 months |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 388 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [Usatine & Erickson Media LLC](https://appshunter.io/developer/1466894388) |

## 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 |


### Anesthesiology, Third Edition

[App page](https://appshunter.io/ios/app/anesthesiology-third-edition/id1422512649)

**Features:** macOS Compatibility

**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 Anesthesiology, Third Edition free?

Anesthesiology, Third Edition costs $124.99, with no in-app purchases.

### Do Guide to Diagnostic Tests or Anesthesiology, Third Edition have ads?

Neither Guide to Diagnostic Tests nor Anesthesiology, Third Edition shows ads.

### Which is updated more often, Guide to Diagnostic Tests or Anesthesiology, Third Edition?

Guide to Diagnostic Tests ships an update every 9 months, and Anesthesiology, Third Edition every 32 months. Most recently, Guide to Diagnostic Tests was updated on November 8, 2026 and Anesthesiology, Third Edition on November 11, 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.*