# PDF Locker vs AppMock3D

The clearest difference is in-app purchases: AppMock3D at none against PDF Locker's 3. AppMock3D also leads on update cadence (every 8 days vs every 5 months). PDF Locker's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Locker sells 3 in-app purchases, starting at $4.99 per 7 days. AppMock3D asks for nothing beyond the download.

PDF Locker ships an update every 5 months, AppMock3D every 8 days. Both last shipped on October 10, 2026.

## The numbers

| Metric | PDF Locker | AppMock3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 8 days** |
| Size | 3 MB | 36 MB |
| Requires iOS | **17.0** | 18.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vikram Singh](https://appshunter.io/developer/1800895019) | [shogo isaji](https://appshunter.io/developer/1720113915) |

## What reviewers say

### PDF Locker

[App page](https://appshunter.io/ios/app/pdf-locker-pdf-wolf/id6745149950)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mobile Pro Access Weekly | $4.99 | per 7 days |
| Mobile Pro Access Yearly | $19.99 | per year |
| Pro Lifetime Unlock | $19.99 | one-time |


### AppMock3D

[App page](https://appshunter.io/ios/app/appmock3d/id6749827731)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Locker free?

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

### Is AppMock3D free?

AppMock3D is free to download, with no in-app purchases.

### Do PDF Locker or AppMock3D have ads?

AppMock3D shows ads; PDF Locker does not.

### Which is updated more often, PDF Locker or AppMock3D?

PDF Locker ships an update every 5 months, and AppMock3D every 8 days. Most recently, PDF Locker was updated on October 10, 2026 and AppMock3D on October 10, 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.*