# Quality Laboratory vs Laboratory Diagnostic Test

The clearest difference is ads: Quality Laboratory at none against Laboratory Diagnostic Test's shown. Quality Laboratory also leads on update cadence (every 3 weeks vs every 5 months) and iOS requirement (6.0 vs 14.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quality Laboratory ships an update every 3 weeks, Laboratory Diagnostic Test every 5 months. The most recent releases landed on October 26, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Quality Laboratory | Laboratory Diagnostic Test |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Size | 7 MB | 6 MB |
| Requires iOS | **6.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Comtron Inc.](https://appshunter.io/developer/972141057) | [Ahmad Al Hariri](https://appshunter.io/developer/1648019898) |

## What reviewers say

### Quality Laboratory

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Laboratory Diagnostic Test

[App page](https://appshunter.io/ios/app/laboratory-diagnostic-test/id6737160954)

**In-app purchases:** none


## Frequently asked questions

### Is Quality Laboratory free?

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

### Is Laboratory Diagnostic Test free?

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

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

Laboratory Diagnostic Test shows ads; Quality Laboratory does not.

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

Quality Laboratory ships an update every 3 weeks, and Laboratory Diagnostic Test every 5 months. Most recently, Quality Laboratory was updated on October 26, 2026 and Laboratory Diagnostic Test on October 19, 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.*