# BioFarm Knowledge Test vs Plant Protection Study

The clearest difference is update cadence: Plant Protection Study at weekly against BioFarm Knowledge Test's every 2 months. Plant Protection Study also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.2). On price, ads and in-app purchases there is nothing between them.

Both are free to download. BioFarm Knowledge Test sells 2 in-app purchases, starting at $9.99 per month and Plant Protection Study sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

BioFarm Knowledge Test ships an update every 2 months, Plant Protection Study weekly. The most recent releases landed on October 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BioFarm Knowledge Test | Plant Protection Study |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 9 MB | 38 MB |
| Requires iOS | 17.2 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) | [Christian Hermann](https://appshunter.io/developer/1882361365) |

## What reviewers say

### BioFarm Knowledge Test

[App page](https://appshunter.io/ios/app/biofarm-knowledge-test/id6740738735)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $9.99 | per month |
| Lifetime version | $19.99 | one-time |


### Plant Protection Study

[App page](https://appshunter.io/ios/app/plant-protection-study/id6772565173)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plant Protection Complete | $4.99 | one-time |


## Frequently asked questions

### Is BioFarm Knowledge Test free?

BioFarm Knowledge Test is free to download, with in-app purchases available.

### Is Plant Protection Study free?

Plant Protection Study is free to download, with in-app purchases available.

### Do BioFarm Knowledge Test or Plant Protection Study have ads?

Neither BioFarm Knowledge Test nor Plant Protection Study shows ads.

### Which is updated more often, BioFarm Knowledge Test or Plant Protection Study?

BioFarm Knowledge Test ships an update every 2 months, and Plant Protection Study weekly. Most recently, BioFarm Knowledge Test was updated on October 3, 2026 and Plant Protection Study on October 25, 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.*