# Guide to Diagnostic Tests vs Laboratory Decision System

The clearest difference is review sentiment: Laboratory Decision System at 50% against Guide to Diagnostic Tests's 0%. Laboratory Decision System also leads on in-app purchases (none vs 1) and iOS requirement (12.1 vs 15.0). Guide to Diagnostic Tests's advantage is rating (4.6 vs 4.0) and ratings volume (35 vs 4). On price, 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. Laboratory Decision System asks for nothing beyond the download.

Guide to Diagnostic Tests holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Guide to Diagnostic Tests has 35 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 0% of Guide to Diagnostic Tests's written reviews are positive against 50% of Laboratory Decision System's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Guide to Diagnostic Tests | Laboratory Decision System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (35 ratings)](https://appshunter.io/ios/app/guide-to-diagnostic-tests/id910130424/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/laboratory-decision-system/id1454561051/reviews) |
| Number of ratings | **35** | 4 |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 10 MB | 7 MB |
| Requires iOS | 15.0 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Unbound Medicine, Inc.](https://appshunter.io/developer/300420400) | [Medical Database, Inc.](https://appshunter.io/developer/1454561050) |

## 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 Decision System

[App page](https://appshunter.io/ios/app/laboratory-decision-system/id1454561051)

This platform helps healthcare providers choose the most relevant lab tests. It uses a proprietary ranking algorithm to guide decisions based on disease, symptoms, and ICD10 codes.

**Highlights:** Lab test management, Utilization platform, Proprietary ranking algorithm, Disease-based test selection, Symptom-based test selection, ICD10 code integration

**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 Laboratory Decision System free?

Laboratory Decision System is free to download, with no in-app purchases.

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

Guide to Diagnostic Tests is rated higher. Guide to Diagnostic Tests averages 4.6 out of 5 from 35 ratings, while Laboratory Decision System averages 4.0 from 4 ratings.

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

Neither Guide to Diagnostic Tests nor Laboratory Decision System shows ads.

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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.*