# PDF Reader vs PDF Vault

The clearest difference is ads: PDF Vault at none against PDF Reader's shown. PDF Vault also leads on update cadence (fortnightly vs every 9 months) and review sentiment (50% vs 33%). PDF Reader's advantage is iOS requirement (13.0 vs 18.1). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. PDF Reader sells 1 one-off in-app purchase and PDF Vault sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PDF Reader ships an update every 9 months, PDF Vault fortnightly. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PDF Reader | PDF Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/pdf-reader-docs-viewer/id1240773558/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 33.3% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 4 MB |
| Requires iOS | **13.0** | 18.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [小玲 白](https://appshunter.io/developer/1166875754) | [Dmytro Skorokhod](https://appshunter.io/developer/994177751) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-docs-viewer/id1240773558)

Easily view PDF documents on your mobile device or tablet. Upload files via WiFi, open encrypted PDFs with a password, and enjoy adaptive screen sizing for comfortable reading. Protect your documents with app lock and gesture passwords.

**Highlights:** View PDF documents, WiFi file upload, Encrypted PDF support, Adaptive screen size, Read Word, Excel, PPT, App lock and gesture password

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanently remove ads | $1.99 | one-time |


### PDF Vault

[App page](https://appshunter.io/ios/app/pdf-vault-document-app/id1599303874)

This ultra-lightweight application offers a comprehensive suite of PDF tools, including text-to-speech functionality, digital signing, document scanning, organization, and instant translation. It's designed for efficiency and ease of use, saving device space while enhancing productivity for work, study, or personal tasks.

**Highlights:** Text-to-speech for PDFs, Digital document signing, Scan paper documents to PDF, Organize and manage PDF files, Instant document translation, Ultra-lightweight and fast

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mox PDF Tool Unlimited Monthly | $4.99 | per month |
| Mox PDF Tool Unlimited Annually | $19.99 | per year |


## Frequently asked questions

### Is PDF Reader free?

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

### Is PDF Vault free?

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

### Do PDF Reader or PDF Vault have ads?

PDF Reader shows ads; PDF Vault does not.

### Which is updated more often, PDF Reader or PDF Vault?

PDF Reader ships an update every 9 months, and PDF Vault fortnightly. Most recently, PDF Reader was updated on October 2, 2026 and PDF Vault on October 12, 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.*