# Summarizer AI vs ChatPDF

The clearest difference is rating: Summarizer AI at 3.0 against ChatPDF's 1.0. Summarizer AI also leads on ratings volume (5 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Summarizer AI sells 3 in-app purchases, starting at $6.99 per 7 days and ChatPDF sells 2 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Summarizer AI holds the better App Store score, 3.0 against 1.0. That said, the two scores are not equally well evidenced: Summarizer AI has 5 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 9, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Summarizer AI | ChatPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (5 ratings)](https://appshunter.io/ios/app/summarizer-ai/id6447693608/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/chatpdf-ask-and-summarize-pdf/id6457204652/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 1 MB | 58 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Deniz Cagilligecit](https://appshunter.io/developer/1682262417) | [ProxGlobal Inc](https://appshunter.io/developer/1586288668) |

## What reviewers say

### Summarizer AI

[App page](https://appshunter.io/ios/app/summarizer-ai/id6447693608)

This AI-powered tool helps you quickly extract key information from long documents, PDFs, and web pages. Save time and improve comprehension by getting concise summaries tailored to your needs. It supports multiple languages and offers global accessibility for efficient learning and work.

**Highlights:** Instant AI-powered summaries, Summarize PDFs and scanned text, Webpage summarization via URL, Customizable summary length, Multilingual support, Copy-paste text summarization

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $6.99 | per 7 days |
| Yearly Pro | $29.99 | per year |
| Lifetime Pro | $79.99 | one-time |


### ChatPDF

[App page](https://appshunter.io/ios/app/chatpdf-ask-and-summarize-pdf/id6457204652)

This tool helps students, professionals, and researchers save time by interacting with PDF documents. It allows you to chat with your PDFs, summarize their content, and read them directly within the app. Easily manage and share your files for optimized study, work, and research.

**Highlights:** Chat with PDF content, Summarize documents, PDF reader, Store chat history, Sort, delete, and share files, Language translation

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $8.99 | per 7 days |
| Yearly | $59.99 | per year |


## Frequently asked questions

### Is Summarizer AI free?

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

### Is ChatPDF free?

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

### Which has better reviews, Summarizer AI or ChatPDF?

Summarizer AI is rated higher. Summarizer AI averages 3.0 out of 5 from 5 ratings, while ChatPDF averages 1.0 from 1 ratings.

### Do Summarizer AI or ChatPDF have ads?

Neither Summarizer AI nor ChatPDF shows ads.

### Which is updated more often, Summarizer AI or ChatPDF?

Summarizer AI ships an update monthly, and ChatPDF monthly. Most recently, Summarizer AI was updated on September 9, 2026 and ChatPDF on September 11, 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.*