# PDF Unlock vs DFNDR

The clearest difference is in-app purchases: DFNDR at none against PDF Unlock's 6. PDF Unlock's advantage is update cadence (every 8 days vs every 2 months) and device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. PDF Unlock sells 6 in-app purchases, starting at $0.99 per month. DFNDR asks for nothing beyond the download.

PDF Unlock ships an update every 8 days, DFNDR every 2 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | PDF Unlock | DFNDR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/pdf-unlock-offline-pdf-tools/id6743647020/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 months |
| Monetization | Subscription | — |
| Size | 79 MB | 69 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dipak Chhag](https://appshunter.io/developer/1803769062) | [DFNDR TECHNOLOGIES INC](https://appshunter.io/developer/1848598664) |

## What reviewers say

### PDF Unlock

[App page](https://appshunter.io/ios/app/pdf-unlock-offline-pdf-tools/id6743647020)

Manage PDF security and convert documents offline. This tool allows you to unlock, lock, and scan PDFs without an internet connection. It also converts images to secure, password-protected PDFs.

**Highlights:** Offline PDF unlocking and locking, Password removal and auto-unlock, Image to PDF conversion, Document scanning to PDF, Secure PDF password management, Multi-language support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Unlock:Offline PDF Tool-Monthly | $0.99 | per month |
| PDF Unlock Genie - Monthly | $2.99 | per month |
| PDF Unlock:Offline PDF Tool-Annual | $6.99 | per year |
| PDF Unlock Genie - Yearly | $19.99 | per year |
| PDF Unlock Genie - Lifetime | $14.99 | one-time |
| PDF Unlock Genie - Lifetime | $39.99 | one-time |


### DFNDR

[App page](https://appshunter.io/ios/app/dfndr/id6754516996)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Unlock free?

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

### Is DFNDR free?

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

### Do PDF Unlock or DFNDR have ads?

Neither PDF Unlock nor DFNDR shows ads.

### Which is updated more often, PDF Unlock or DFNDR?

PDF Unlock ships an update every 8 days, and DFNDR every 2 months. Most recently, PDF Unlock was updated on October 24, 2026 and DFNDR on October 15, 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.*