# Guide to Diagnostic Tests vs ABOHNS

The clearest difference is in-app purchases: ABOHNS at none against Guide to Diagnostic Tests's 1. ABOHNS also leads on iOS requirement (9.3 vs 15.0). Guide to Diagnostic Tests's advantage is update cadence (every 9 months vs every 47 months) and device support (3 vs 1). On price and ads there is nothing between them.

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

Guide to Diagnostic Tests ships an update every 9 months, ABOHNS every 47 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Guide to Diagnostic Tests | ABOHNS |
| --- | --- | --- |
| 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 | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 47 months |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 5 MB |
| Requires iOS | 15.0 | **9.3** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 17+ | 17+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [Internet Testing Systems (ITS)](https://appshunter.io/developer/546817214) |

## 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 |


### ABOHNS

[App page](https://appshunter.io/ios/app/abohns-ote/id1550825622)

**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 ABOHNS free?

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

### Do Guide to Diagnostic Tests or ABOHNS have ads?

Neither Guide to Diagnostic Tests nor ABOHNS shows ads.

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

Guide to Diagnostic Tests ships an update every 9 months, and ABOHNS every 47 months. Most recently, Guide to Diagnostic Tests was updated on October 24, 2026 and ABOHNS on October 16, 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.*