# Cookper vs PDF File Protector

The clearest difference is price: Cookper at Free against PDF File Protector's $19.99. Cookper also leads on update cadence (every 6 days vs every 2 months) and iOS requirement (13.0 vs 16.6). On ads, in-app purchases and device support there is nothing between them.

Cookper is free to download; PDF File Protector costs $19.99 up front. Cookper sells 1 in-app purchase, starting at $6.99 per month and PDF File Protector sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Cookper ships an update every 6 days, PDF File Protector every 2 months. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Cookper | PDF File Protector |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Size | 19 MB | 7 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Sergii Engstrem](https://appshunter.io/developer/1434045332) | [乐祥 胡](https://appshunter.io/developer/1572365721) |

## What reviewers say

### Cookper

[App page](https://appshunter.io/ios/app/cookper/id6451003364)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cookper PRO | $6.99 | per month |


### PDF File Protector

[App page](https://appshunter.io/ios/app/pdf-file-protector/id6738285744)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pdf签名内购 | $9.99 | one-time |


## Frequently asked questions

### Is Cookper free?

Cookper is free to download, with in-app purchases available.

### Is PDF File Protector free?

PDF File Protector costs $19.99, and also offers in-app purchases.

### Do Cookper or PDF File Protector have ads?

Neither Cookper nor PDF File Protector shows ads.

### Which is updated more often, Cookper or PDF File Protector?

Cookper ships an update every 6 days, and PDF File Protector every 2 months. Most recently, Cookper was updated on October 4, 2026 and PDF File Protector on October 12, 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.*