# Big Reader vs Document signature

The clearest difference is iOS requirement: Document signature at 15.1 against Big Reader's 17. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Big Reader sells 2 in-app purchases, starting at $1.99 per month and Document signature sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Big Reader ships an update every 2 weeks, Document signature fortnightly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Big Reader | Document signature |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 16 MB | 32 MB |
| Requires iOS | 17 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hassan Hattab](https://appshunter.io/developer/991737639) | [Reda Boubkraoui](https://appshunter.io/developer/1821642957) |

## What reviewers say

### Big Reader

[App page](https://appshunter.io/ios/app/big-reader-read-everything/id6756084126)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $19.99 | per year |


### Document signature

[App page](https://appshunter.io/ios/app/document-signature-pdf-esign/id6756886015)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Document Signature PRO Weekly | $5.99 | per 7 days |
| Document Signature PRO Yearly | $29.99 | per year |


## Frequently asked questions

### Is Big Reader free?

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

### Is Document signature free?

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

### Do Big Reader or Document signature have ads?

Neither Big Reader nor Document signature shows ads.

### Which is updated more often, Big Reader or Document signature?

Big Reader ships an update every 2 weeks, and Document signature fortnightly. Most recently, Big Reader was updated on October 25, 2026 and Document signature on October 28, 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.*