# ZenPDF vs Notes Index

The clearest difference is ads: Notes Index at none against ZenPDF's shown. ZenPDF's advantage is iOS requirement (13.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ZenPDF | Notes Index |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Every 9 days |
| Size | 62 MB | 2 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Haileslassie Lilay Desalegn](https://appshunter.io/developer/1841785547) | [nedrelow, LLC](https://appshunter.io/developer/474024242) |

## What reviewers say

### ZenPDF

[App page](https://appshunter.io/ios/app/zenpdf-pdf-tools-and-scanner/id6785234912)

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

**In-app purchases:** none


### Notes Index

[App page](https://appshunter.io/ios/app/notes-index/id6813248037)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZenPDF free?

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

### Is Notes Index free?

Notes Index is free to download, with no in-app purchases.

### Do ZenPDF or Notes Index have ads?

ZenPDF shows ads; Notes Index does not.

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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.*