# Guide to Diagnostic Tests vs Laboratory Diagnostic Tests

The clearest difference is ads: Guide to Diagnostic Tests at none against Laboratory Diagnostic Tests's shown. Laboratory Diagnostic Tests's advantage is iOS requirement (13.0 vs 15.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Guide to Diagnostic Tests sells 1 one-off in-app purchase and Laboratory Diagnostic Tests sells 7 in-app purchases, starting at $29.99 per 3 months. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Guide to Diagnostic Tests against 4.6 for Laboratory Diagnostic Tests. Both are backed by a comparable volume of ratings — 35 and 14 respectively.

Guide to Diagnostic Tests ships an update every 9 months, Laboratory Diagnostic Tests every 6 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Guide to Diagnostic Tests | Laboratory Diagnostic Tests |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (35 ratings)](https://appshunter.io/ios/app/guide-to-diagnostic-tests/id910130424/reviews) | **[4.6 (14 ratings)](https://appshunter.io/ios/app/laboratory-diagnostic-tests/id1238669077/reviews)** |
| Number of ratings | **35** | 14 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 6 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 47 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 17+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) |

## 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 |


### Laboratory Diagnostic Tests

[App page](https://appshunter.io/ios/app/laboratory-diagnostic-tests/id1238669077)

This comprehensive manual provides essential information on laboratory and diagnostic tests, focusing on nursing implications and clinical judgment. It helps healthcare professionals understand test procedures, interpret results, and deliver quality patient care with updated terminology and a student-friendly design.

**Highlights:** Nursing implications and clinical judgment focus, Alphabetical test listing for quick reference, Integrated index for multiple search options, Updated terminology and healthcare changes, Student decision-making model for critical thinking, Patient education section with clear language

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HBK of Lab. & Dx Tests 3M Sub | $29.99 | per 3 months |
| HBK of Lab. & Dx Tests 6M Sub | $39.99 | per 6 months |
| 25% Off for Limited Period | $44.00 | per year |
| 20% Off for Limited Period | $47.00 | per year |
| 15% Off for Limited Offer | $50.00 | per year |
| HBK of Lab. & Dx Tests 1/Y Sub | $59.99 | per year |
| HBK of Laboratory and Dx Tests | $59.99 | one-time |


## Frequently asked questions

### Is Guide to Diagnostic Tests free?

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

### Is Laboratory Diagnostic Tests free?

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

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

Laboratory Diagnostic Tests is rated higher. Guide to Diagnostic Tests averages 4.6 out of 5 from 35 ratings, while Laboratory Diagnostic Tests averages 4.6 from 14 ratings.

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

Laboratory Diagnostic Tests shows ads; Guide to Diagnostic Tests does not.

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

Guide to Diagnostic Tests ships an update every 9 months, and Laboratory Diagnostic Tests every 6 months. Most recently, Guide to Diagnostic Tests was updated on October 27, 2026 and Laboratory 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.*