# PDF Reader vs Document Sign

PDF Reader and Document Sign are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. PDF Reader sells 2 in-app purchases, starting at $3.99 per month and Document Sign sells 5 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 3 months, Document Sign every 2 months. The most recent releases landed on September 16, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | PDF Reader | Document Sign |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 23 MB | 76 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Smit Pipaliya](https://appshunter.io/developer/1646406919) | [SWAINFO SOLUTIONS](https://appshunter.io/developer/1650786446) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-pdf-viewer/id6443484704)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Reader & Editor Monthly | $3.99 | per month |
| PDF Reader & Editor Yearly | $27.49 | per year |


### Document Sign

[App page](https://appshunter.io/ios/app/document-sign/id6443938638)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $4.99 | per month |
| Weekly Premium Access | $6.99 | per 7 days |
| Monthly Premium Access | $9.99 | per month |
| Yearly Premium Access | $39.99 | per year |
| Lifetime Subscription | $9.99 | one-time |


## Frequently asked questions

### Is PDF Reader free?

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

### Is Document Sign free?

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

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

Both PDF Reader and Document Sign show ads.

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

PDF Reader ships an update every 3 months, and Document Sign every 2 months. Most recently, PDF Reader was updated on September 16, 2026 and Document Sign on September 9, 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.*