# Sign PDF vs Scan QR

The clearest difference is ads: Sign PDF at none against Scan QR's shown. Scan QR's advantage is update cadence (daily vs every 69 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Sign PDF sells 3 in-app purchases, starting at $3.99 per 7 days and Scan QR sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Sign PDF ships an update every 69 months, Scan QR daily. The most recent releases landed on August 13, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Sign PDF | Scan QR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 7.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 69 months | **Daily** |
| Monetization | Free | — |
| Size | 3 MB | 56 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Matteo Morelli](https://appshunter.io/developer/520803077) | [Ivan Kuvshinov](https://appshunter.io/developer/1756075822) |

## What reviewers say

### Sign PDF

[App page](https://appshunter.io/ios/app/sign-pdf-scan-and-fill-docs/id979534235)

Easily add your signature to PDF documents using your device. Create signatures by taking a photo, using special fonts, drawing on screen, or importing an image. Export signed documents as PDFs or JPEGs, and print or share them directly.

**Highlights:** Apply signature to PDF, Export as PDF, PDF to JPEG conversion, Print from device, Share via email, Multiple signature creation modes

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Firma Pro Weekly | $3.99 | per 7 days |
| Firma Pro Yearly | $22.99 | per year |
| Firma Pro Lifetime | $49.99 | one-time |


### Scan QR

[App page](https://appshunter.io/ios/app/scan-qr-code/id6523428316)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $1.99 | per 7 days |
| All Access annual | $35.90 | per year |


## Frequently asked questions

### Is Sign PDF free?

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

### Is Scan QR free?

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

### Do Sign PDF or Scan QR have ads?

Scan QR shows ads; Sign PDF does not.

### Which is updated more often, Sign PDF or Scan QR?

Sign PDF ships an update every 69 months, and Scan QR daily. Most recently, Sign PDF was updated on August 13, 2026 and Scan QR on September 20, 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.*