# PDF Tools vs Dialog AI

The clearest difference is update cadence: Dialog AI at every 3 days against PDF Tools's weekly. PDF Tools's advantage is iOS requirement (14.0 vs 17.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Tools sells 3 in-app purchases, starting at $2.99 per 7 days and Dialog AI sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

PDF Tools ships an update weekly, Dialog AI every 3 days. The most recent releases landed on July 5, 2026 and August 29, 2026 respectively.

## The numbers

| Metric | PDF Tools | Dialog AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/pdf-tools-read-and-edit/id6745811413/reviews)** | — |
| Number of ratings | **9** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 96 MB | 10 MB |
| Requires iOS | **14.0** | 17.5 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Shilong Lu](https://appshunter.io/developer/1185413008) | [FUDLJU TECHNOLOGY LIMITED](https://appshunter.io/developer/1766431334) |

## What reviewers say

### PDF Tools

[App page](https://appshunter.io/ios/app/pdf-tools-read-and-edit/id6745811413)

Edit, convert, and manage PDF files with features like OCR scanning, electronic signatures, and file merging. This tool allows for local processing without requiring a login, ensuring privacy and security for your documents.

**Highlights:** PDF to Word/Excel/TXT conversion, OCR scanning, Electronic signature, Merge and split PDFs, File encryption, Highlight and doodle on PDFs

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $29.99 | per year |
| Permanent Member | $3.99 | one-time |


### Dialog AI

[App page](https://appshunter.io/ios/app/dialog-ai/id6747884043)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $99.99 | per year |


## Frequently asked questions

### Is PDF Tools free?

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

### Is Dialog AI free?

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

### Do PDF Tools or Dialog AI have ads?

Both PDF Tools and Dialog AI show ads.

### Which is updated more often, PDF Tools or Dialog AI?

PDF Tools ships an update weekly, and Dialog AI every 3 days. Most recently, PDF Tools was updated on July 5, 2026 and Dialog AI on August 29, 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.*