# PDF Signer app vs PDF Vault

The clearest difference is in-app purchases: PDF Signer app at none against PDF Vault's 2. PDF Signer app also leads on iOS requirement (12.2 vs 18.1). PDF Vault's advantage is update cadence (every 3 weeks vs every 3 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. PDF Vault sells 2 in-app purchases, starting at $4.99 per month. PDF Signer app asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PDF Signer app against 5.0 for PDF Vault. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

PDF Signer app ships an update every 3 months, PDF Vault every 3 weeks. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PDF Signer app | PDF Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/pdf-signer-app/id1293669127/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/pdf-vault-document-app/id1599303874/reviews) |
| Number of ratings | 3 | 3 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 4 MB |
| Requires iOS | **12.2** | 18.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [farmerswife](https://appshunter.io/developer/571048737) | [Dmytro Skorokhod](https://appshunter.io/developer/994177751) |

## What reviewers say

### PDF Signer app

[App page](https://appshunter.io/ios/app/pdf-signer-app/id1293669127)

Create and fill out forms directly on PDF documents. This tool simplifies the process of collecting and managing information within PDFs.

**Highlights:** Build forms on PDFs, Fill out collections, Easy data management, PDF form creation

**In-app purchases:** none


### 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 Signer app free?

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

### Is PDF Vault free?

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

### Which has better reviews, PDF Signer app or PDF Vault?

PDF Signer app and PDF Vault are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.

### Do PDF Signer app or PDF Vault have ads?

Neither PDF Signer app nor PDF Vault shows ads.

### Which is updated more often, PDF Signer app or PDF Vault?

PDF Signer app ships an update every 3 months, and PDF Vault every 3 weeks. Most recently, PDF Signer app was updated on October 18, 2026 and PDF Vault 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.*