# AI PDF Reader vs PDFReader

The clearest difference is update cadence: PDFReader at every 2 months against AI PDF Reader's every 16 months. AI PDF Reader's advantage is iOS requirement (15.6 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI PDF Reader sells 2 in-app purchases, starting at $6.99 per 7 days and PDFReader sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

AI PDF Reader ships an update every 16 months, PDFReader every 2 months. The most recent releases landed on October 19, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | AI PDF Reader | PDFReader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 16 months | **Every 2 months** |
| Size | 61 MB | 14 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HK TECHNOSOFT](https://appshunter.io/developer/1779078064) | [克 谢](https://appshunter.io/developer/1722475771) |

## What reviewers say

### AI PDF Reader

[App page](https://appshunter.io/ios/app/ai-pdf-reader-pdf-speaker/id6746432323)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reader One Week | $6.99 | per 7 days |
| Reader One Year | $44.99 | per year |


### PDFReader

[App page](https://appshunter.io/ios/app/pdfreader-ai-pdf-assistant/id6758230344)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $9.99 | per month |
| Yearly Pro | $49.99 | per year |


## Frequently asked questions

### Is AI PDF Reader free?

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

### Is PDFReader free?

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

### Do AI PDF Reader or PDFReader have ads?

Both AI PDF Reader and PDFReader show ads.

### Which is updated more often, AI PDF Reader or PDFReader?

AI PDF Reader ships an update every 16 months, and PDFReader every 2 months. Most recently, AI PDF Reader was updated on October 19, 2026 and PDFReader 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.*