# Sally Vision vs PDF Locker

The clearest difference is update cadence: PDF Locker at every 2 weeks against Sally Vision's every 2 months. Sally Vision's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sally Vision ships an update every 2 months, PDF Locker every 2 weeks. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sally Vision | PDF Locker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pdf-locker/id1595267349/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 25 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sally LTD](https://appshunter.io/developer/1531501412) | [Krishna Raj Salim](https://appshunter.io/developer/1638689285) |

## What reviewers say

### Sally Vision

[App page](https://appshunter.io/ios/app/sally-vision/id1558569216)

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

**In-app purchases:** none


### PDF Locker

[App page](https://appshunter.io/ios/app/pdf-locker/id1595267349)

Secure your PDF documents with individual passwords or PINs. Share protected files and easily remove passwords when needed. Offers app-level protection using device biometrics or passcodes.

**Highlights:** Save PDF files, Secure with password/PIN, Share protected files, Unlock/remove password, App protection with biometrics/passcode

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

**In-app purchases:** none


## Frequently asked questions

### Is Sally Vision free?

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

### Is PDF Locker free?

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

### Do Sally Vision or PDF Locker have ads?

Neither Sally Vision nor PDF Locker shows ads.

### Which is updated more often, Sally Vision or PDF Locker?

Sally Vision ships an update every 2 months, and PDF Locker every 2 weeks. Most recently, Sally Vision was updated on October 21, 2026 and PDF Locker on October 24, 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.*