# PDF Locker vs BookmarkPro

The clearest difference is update cadence: BookmarkPro at weekly against PDF Locker's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Locker sells 3 in-app purchases, starting at $4.99 per 7 days and BookmarkPro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PDF Locker ships an update every 5 months, BookmarkPro weekly. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | PDF Locker | BookmarkPro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bookmarkpro/id6748297283/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Size | 3 MB | 26 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Vikram Singh](https://appshunter.io/developer/1800895019) | [岭 林](https://appshunter.io/developer/1310569777) |

## 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 |


### BookmarkPro

[App page](https://appshunter.io/ios/app/bookmarkpro/id6748297283)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BookmarkPro | $4.99 | one-time |


## Frequently asked questions

### Is PDF Locker free?

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

### Is BookmarkPro free?

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

### Do PDF Locker or BookmarkPro have ads?

Neither PDF Locker nor BookmarkPro shows ads.

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

PDF Locker ships an update every 5 months, and BookmarkPro weekly. Most recently, PDF Locker was updated on October 10, 2026 and BookmarkPro on October 17, 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.*