# Davis Lab and Diagnostic Tests vs BritSTAR Lab

The clearest difference is in-app purchases: BritSTAR Lab at none against Davis Lab and Diagnostic Tests's 1. BritSTAR Lab also leads on update cadence (monthly vs every 13 months) and iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Davis Lab and Diagnostic Tests sells 1 in-app purchase, starting at $38.99 per year. BritSTAR Lab asks for nothing beyond the download.

Davis Lab and Diagnostic Tests ships an update every 13 months, BritSTAR Lab monthly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Davis Lab and Diagnostic Tests | BritSTAR Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/davis-lab-and-diagnostic-tests/id1605906059/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 474 MB | 36 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Atmosphere Apps, Inc.](https://appshunter.io/developer/334077424) | [Africa Health Link](https://appshunter.io/developer/1445831912) |

## What reviewers say

### Davis Lab and Diagnostic Tests

[App page](https://appshunter.io/ios/app/davis-lab-and-diagnostic-tests/id1605906059)

This medical reference app provides comprehensive information on lab and diagnostic tests. It helps users understand test procedures, interpret results, and offer quality patient care with detailed nursing implications, common uses, and interfering factors.

**Highlights:** Alphabetical listing of tests, Searchable by abbreviation, synonym, disease, Potential Nursing Problems tables, Common Use explanations, Pre-test, intra-test, post-test coverage, Patient safety and teaching information, Reference ranges in conventional and SI units

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $38.99 | per year |


### BritSTAR Lab

[App page](https://appshunter.io/ios/app/britstar-lab/id6453224354)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Davis Lab and Diagnostic Tests free?

Davis Lab and Diagnostic Tests is free to download, with in-app purchases available.

### Is BritSTAR Lab free?

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

### Do Davis Lab and Diagnostic Tests or BritSTAR Lab have ads?

Neither Davis Lab and Diagnostic Tests nor BritSTAR Lab shows ads.

### Which is updated more often, Davis Lab and Diagnostic Tests or BritSTAR Lab?

Davis Lab and Diagnostic Tests ships an update every 13 months, and BritSTAR Lab monthly. Most recently, Davis Lab and Diagnostic Tests was updated on November 3, 2026 and BritSTAR Lab on November 3, 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.*