# U vs PDF Lock

The clearest difference is in-app purchases: U at none against PDF Lock's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Lock sells 3 in-app purchases, starting at $0.99 per 7 days. U asks for nothing beyond the download.

## The numbers

| Metric | U | PDF Lock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 53 MB | 13 MB |
| Requires iOS | 15.3 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RGIS](https://appshunter.io/developer/1286993638) | [Bhavnaben Rupareliya](https://appshunter.io/developer/1831970601) |

## What reviewers say

### U

[App page](https://appshunter.io/ios/app/u-count/id6738345799)

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

**In-app purchases:** none


### PDF Lock

[App page](https://appshunter.io/ios/app/pdf-lock-password-protect/id6752465221)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Protect   1 Week | $0.99 | per 7 days |
| Protect PDF   1 Month | $2.99 | per month |
| Protect PDF   1 Year | $14.99 | per year |


## Frequently asked questions

### Is U free?

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

### Is PDF Lock free?

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

### Do U or PDF Lock have ads?

Neither U nor PDF Lock shows ads.

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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.*