# Ferri's Best Test vs BritSTAR Lab

The clearest difference is in-app purchases: BritSTAR Lab at none against Ferri's Best Test's 1. BritSTAR Lab also leads on ads (none vs shown) and update cadence (monthly vs every 6 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Ferri's Best Test sells 1 one-off in-app purchase. BritSTAR Lab asks for nothing beyond the download.

Ferri's Best Test ships an update every 6 months, BritSTAR Lab monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Ferri's Best Test | BritSTAR Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (26 ratings)](https://appshunter.io/ios/app/ferris-best-test-lab-guide/id1243450037/reviews)** | — |
| Number of ratings | **26** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 149 MB | 36 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Skyscape Medpresso Inc](https://appshunter.io/developer/818609416) | [Africa Health Link](https://appshunter.io/developer/1445831912) |

## What reviewers say

### Ferri's Best Test

[App page](https://appshunter.io/ios/app/ferris-best-test-lab-guide/id1243450037)

This medical reference app provides guidance on laboratory and imaging approaches for over 400 tests and 230 diseases. It features interactive flowcharts, IU units, and concise clinical material to aid in test selection and diagnostic skills.

**Highlights:** Over 400+ tests and labs, Guidance on radio-logic & laboratory approaches, 230+ common diseases, Interactive flowcharts, IU units for all tests, SmartSearch technology

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ferri's Best Test - Lab & Diag | $40.99 | one-time |


### BritSTAR Lab

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ferri's Best Test free?

Ferri's Best Test 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 Ferri's Best Test or BritSTAR Lab have ads?

Ferri's Best Test shows ads; BritSTAR Lab does not.

### Which is updated more often, Ferri's Best Test or BritSTAR Lab?

Ferri's Best Test ships an update every 6 months, and BritSTAR Lab monthly. Most recently, Ferri's Best Test was updated on November 2, 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.*