# Pdf Summerizer vs ChatPDF

The clearest difference is ads: Pdf Summerizer at none against ChatPDF's shown. ChatPDF's advantage is update cadence (every 4 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Pdf Summerizer sells 2 in-app purchases, starting at $5.99 per month and ChatPDF sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

Pdf Summerizer ships an update monthly, ChatPDF every 4 days. The most recent releases landed on October 25, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Pdf Summerizer | ChatPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (95 ratings)](https://appshunter.io/ios/app/chatpdf-chat-pdf-ai/id6742454061/reviews)** |
| Number of ratings | — | **95** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 37 MB | 41 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bugrahan Gulmez](https://appshunter.io/developer/1701342042) | [ChatPDF GmbH](https://appshunter.io/developer/1711436087) |

## What reviewers say

### Pdf Summerizer

[App page](https://appshunter.io/ios/app/pdf-summerizer-ai-summerize/id6742272003)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $5.99 | per month |
| Yearly Subscription | $29.99 | per year |


### ChatPDF

[App page](https://appshunter.io/ios/app/chatpdf-chat-pdf-ai/id6742454061)

This AI-powered tool allows you to ask questions and get summaries directly from your PDF documents. It supports multiple files, OCR, and multilingual interactions, making complex information easily accessible.

**Highlights:** Instant answers from PDFs, Quick document summaries, Chat with multiple PDFs, OCR for scanned documents, Multilingual support, Cross-device access

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plus Subscription | $14.99 | per month |
| ChatPDF Yearly Plus Plan | $89.99 | per year |


## Frequently asked questions

### Is Pdf Summerizer free?

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

### Is ChatPDF free?

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

### Do Pdf Summerizer or ChatPDF have ads?

ChatPDF shows ads; Pdf Summerizer does not.

### Which is updated more often, Pdf Summerizer or ChatPDF?

Pdf Summerizer ships an update monthly, and ChatPDF every 4 days. Most recently, Pdf Summerizer was updated on October 25, 2026 and ChatPDF on November 4, 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.*