# PDF Reader vs PrismText

The clearest difference is update cadence: PrismText at every 6 weeks against PDF Reader's every 115 months. On price, ads, 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.

PDF Reader ships an update every 115 months, PrismText every 6 weeks. The most recent releases landed on October 10, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | PDF Reader | PrismText |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 115 months | **Every 6 weeks** |
| Size | 9 MB | 115 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aishvarya Sadasivam](https://appshunter.io/developer/1062048241) | [CHANG DEOK KIM](https://appshunter.io/developer/1691984952) |

## What reviewers say

### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-sign/id1084660270)

**Features:** macOS Compatibility

**In-app purchases:** none


### PrismText

[App page](https://appshunter.io/ios/app/prismtext-ocr-scanner/id6754193988)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Reader free?

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

### Is PrismText free?

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

### Do PDF Reader or PrismText have ads?

Both PDF Reader and PrismText show ads.

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

PDF Reader ships an update every 115 months, and PrismText every 6 weeks. Most recently, PDF Reader was updated on October 10, 2026 and PrismText on October 2, 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.*