# PDF Assistant：PDF Scanner App vs PDFChat AI

The clearest difference is in-app purchases: PDF Assistant：PDF Scanner App at none against PDFChat AI's 2. PDFChat AI's advantage is update cadence (fortnightly vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDFChat AI sells 2 in-app purchases, starting at $4.99 per 7 days. PDF Assistant：PDF Scanner App asks for nothing beyond the download.

PDF Assistant：PDF Scanner App ships an update every 5 months, PDFChat AI fortnightly. The most recent releases landed on October 30, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | PDF Assistant：PDF Scanner App | PDFChat AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/pdfchat-ai-chat-with-pdf/id6774671495/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 3 MB | 29 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [雪娟 柳](https://appshunter.io/developer/1678459771) | [Artem Osetrov](https://appshunter.io/developer/1885616334) |

## What reviewers say

### PDF Assistant：PDF Scanner App

[App page](https://appshunter.io/ios/app/pdf-assistantpdf-scanner-app/id6756697919)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDFChat AI

[App page](https://appshunter.io/ios/app/pdfchat-ai-chat-with-pdf/id6774671495)

Interact with your documents by asking questions and receiving instant, cited answers. This app can also scan paper documents, summarize content, and translate text into over 50 languages. It's designed for efficient information extraction and understanding.

**Highlights:** Chat with PDFs and get cited answers, Scan paper documents with AI OCR, Summarize and extract key points, Translate documents to 50+ languages, Import PDF, DOCX, RTF, and TXT files, Private document processing on-device

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| PDFChat AI Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is PDF Assistant：PDF Scanner App free?

PDF Assistant：PDF Scanner App is free to download, with no in-app purchases.

### Is PDFChat AI free?

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

### Do PDF Assistant：PDF Scanner App or PDFChat AI have ads?

Neither PDF Assistant：PDF Scanner App nor PDFChat AI shows ads.

### Which is updated more often, PDF Assistant：PDF Scanner App or PDFChat AI?

PDF Assistant：PDF Scanner App ships an update every 5 months, and PDFChat AI fortnightly. Most recently, PDF Assistant：PDF Scanner App was updated on October 30, 2026 and PDFChat AI on November 10, 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.*