# AI Note Taker vs ChatPDF

The clearest difference is update cadence: ChatPDF at daily against AI Note Taker's weekly. AI Note Taker's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. AI Note Taker sells 3 in-app purchases, starting at $4.99 per 7 days and ChatPDF sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

AI Note Taker ships an update weekly, ChatPDF daily. The most recent releases landed on September 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AI Note Taker | ChatPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/ai-note-taker-summarizedoc/id6754013670/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 101 MB | 15 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Karen Gyulgyulyan](https://appshunter.io/developer/1846294825) | [BERKCAN ARSLAN](https://appshunter.io/developer/1800916861) |

## What reviewers say

### AI Note Taker

[App page](https://appshunter.io/ios/app/ai-note-taker-summarizedoc/id6754013670)

Instantly summarize and chat with documents, PDFs, and websites in over 20 languages. This AI-powered assistant extracts key information, scans text from images, and offers privacy-first processing with no registration required.

**Highlights:** AI-powered document summarization, Chat with PDFs, documents, and images, Document scanning with OCR, Multilingual summarization and translation, Privacy-first processing, Export summaries to PDF

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly tariff plan | $4.99 | per 7 days |
| Monthly Tariff | $7.99 | per month |
| Annual tariff | $19.99 | per year |


### ChatPDF

[App page](https://appshunter.io/ios/app/chatpdf-ai-pdf-summarizer/id6755740497)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChatPDF Weekly Subscription | $4.99 | per 7 days |
| ChatPDF Monthly Subscription | $9.99 | per month |
| ChatPDF Yearly Subscription | $59.99 | per year |


## Frequently asked questions

### Is AI Note Taker free?

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

### Is ChatPDF free?

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

### Do AI Note Taker or ChatPDF have ads?

Neither AI Note Taker nor ChatPDF shows ads.

### Which is updated more often, AI Note Taker or ChatPDF?

AI Note Taker ships an update weekly, and ChatPDF daily. Most recently, AI Note Taker was updated on September 26, 2026 and ChatPDF on October 24, 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.*