# Quality Laboratory vs Laboratory Diagnostic Tests

The clearest difference is in-app purchases: Quality Laboratory at none against Laboratory Diagnostic Tests's 7. Quality Laboratory also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 6 months). On price and device support there is nothing between them.

Both are free to download. Laboratory Diagnostic Tests sells 7 in-app purchases, starting at $29.99 per 3 months. Quality Laboratory asks for nothing beyond the download.

Quality Laboratory ships an update every 3 weeks, Laboratory Diagnostic Tests every 6 months. The most recent releases landed on October 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Quality Laboratory | Laboratory Diagnostic Tests |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (14 ratings)](https://appshunter.io/ios/app/laboratory-diagnostic-tests/id1238669077/reviews)** |
| Number of ratings | — | **14** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 47 MB |
| Requires iOS | **6.0** | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Comtron Inc.](https://appshunter.io/developer/972141057) | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) |

## What reviewers say

### Quality Laboratory

[App page](https://appshunter.io/ios/app/quality-laboratory/id972141058)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Quality Laboratory free?

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

### Is Laboratory Diagnostic Tests free?

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

### Do Quality Laboratory or Laboratory Diagnostic Tests have ads?

Laboratory Diagnostic Tests shows ads; Quality Laboratory does not.

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

Quality Laboratory ships an update every 3 weeks, and Laboratory Diagnostic Tests every 6 months. Most recently, Quality Laboratory was updated on October 3, 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.*