# ChatPDF vs Chat PDF Summary

The clearest difference is update cadence: ChatPDF at daily against Chat PDF Summary's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ChatPDF sells 3 in-app purchases, starting at $4.99 per 7 days and Chat PDF Summary sells 6 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ChatPDF ships an update daily, Chat PDF Summary every 8 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ChatPDF | Chat PDF Summary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 8 months |
| Size | 15 MB | 9 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BERKCAN ARSLAN](https://appshunter.io/developer/1800916861) | [Jose Sapon](https://appshunter.io/developer/1833571607) |

## What reviewers say

### 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 |


### Chat PDF Summary

[App page](https://appshunter.io/ios/app/chat-pdf-summary-ai-summarize/id6758478401)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Weekly | $5.99 | per 7 days |
| Plus Yearly | $49.99 | per year |
| Premium Version | $2.99 | one-time |
| Small Credits Pack | $4.99 | one-time |
| Medium Credits Pack | $6.99 | one-time |
| Large Credits Pack | $8.99 | one-time |


## Frequently asked questions

### Is ChatPDF free?

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

### Is Chat PDF Summary free?

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

### Do ChatPDF or Chat PDF Summary have ads?

Neither ChatPDF nor Chat PDF Summary shows ads.

### Which is updated more often, ChatPDF or Chat PDF Summary?

ChatPDF ships an update daily, and Chat PDF Summary every 8 months. Most recently, ChatPDF was updated on October 30, 2026 and Chat PDF Summary on November 5, 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.*