# PDF Viewer vs Reader Ink

The clearest difference is in-app purchases: PDF Viewer at none against Reader Ink's 3. PDF Viewer also leads on iOS requirement (16.4 vs 18.0). Reader Ink's advantage is update cadence (every 11 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Reader Ink sells 3 in-app purchases, starting at $1.99 per month. PDF Viewer asks for nothing beyond the download.

PDF Viewer ships an update every 6 weeks, Reader Ink every 11 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PDF Viewer | Reader Ink |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 11 days** |
| Size | 45 MB | 23 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mohamed Nagy](https://appshunter.io/developer/1582361271) | [ILKER YILDIRIM](https://appshunter.io/developer/1748763935) |

## What reviewers say

### PDF Viewer

[App page](https://appshunter.io/ios/app/pdf-viewer-reader-and-markup/id6806775683)

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

**In-app purchases:** none


### Reader Ink

[App page](https://appshunter.io/ios/app/reader-ink-pdf-editor-and-sign/id6809037798)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reader Ink Pro (Monthly) | $1.99 | per month |
| Reader Ink Pro (Yearly) | $14.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is PDF Viewer free?

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

### Is Reader Ink free?

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

### Do PDF Viewer or Reader Ink have ads?

Neither PDF Viewer nor Reader Ink shows ads.

### Which is updated more often, PDF Viewer or Reader Ink?

PDF Viewer ships an update every 6 weeks, and Reader Ink every 11 days. Most recently, PDF Viewer was updated on October 25, 2026 and Reader Ink 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.*