# PDF Reader vs Sign PDF

The clearest difference is review sentiment: PDF Reader at 47% against Sign PDF's 7%. PDF Reader also leads on update cadence (monthly vs every 69 months) and iOS requirement (9.0 vs 17.0). Sign PDF's advantage is monetization model (free vs freemium). On price, ads, in-app purchases and device support there is nothing between them.

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

PDF Reader ships an update monthly, Sign PDF every 69 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PDF Reader | Sign PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (93 ratings)](https://appshunter.io/ios/app/pdf-reader-edit-and-storage/id889642590/reviews)** | — |
| Number of ratings | **93** | — |
| Positive reviews | **46.7% of reviews** | 7.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 69 months |
| Monetization | Freemium | **Free** |
| Size | 52 MB | 3 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ABV Mobile](https://appshunter.io/developer/595885253) | [Matteo Morelli](https://appshunter.io/developer/520803077) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-edit-and-storage/id889642590)

Easily view, edit, search, and annotate PDF documents. This software helps manage your daily work needs by supporting multiple document formats and offering convenient sharing and printing options.

**Highlights:** View PDF documents, Text search within PDFs, Annotate documents, Document management, Support multiple formats, Share and print PDFs

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly VIP | $1.99 | per month |
| Annual VIP | $14.49 | per year |


### 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 |


## Frequently asked questions

### Is PDF Reader free?

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

### Is Sign PDF free?

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

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

Neither PDF Reader nor Sign PDF shows ads.

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

PDF Reader ships an update monthly, and Sign PDF every 69 months. Most recently, PDF Reader was updated on October 22, 2026 and Sign PDF 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.*