# Grace.ai vs ChatPDF

The clearest difference is in-app purchases: Grace.ai at none against ChatPDF's 2. ChatPDF's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price and ads there is nothing between them.

Both are free to download. ChatPDF sells 2 in-app purchases, starting at $0.99 per 7 days. Grace.ai asks for nothing beyond the download.

## The numbers

| Metric | Grace.ai | ChatPDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Size | 854 MB | 47 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rodrigo Prokopowicz](https://appshunter.io/developer/1805197888) | [Ikhwan Noorsetyo](https://appshunter.io/developer/1739847271) |

## What reviewers say

### Grace.ai

[App page](https://appshunter.io/ios/app/graceai/id6754788472)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChatPDF

[App page](https://appshunter.io/ios/app/chatpdf-ai-document-assistant/id6758316696)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Yearly Subscription | $34.99 | per year |


## Frequently asked questions

### Is Grace.ai free?

Grace.ai is free to download, with no in-app purchases.

### Is ChatPDF free?

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

### Do Grace.ai or ChatPDF have ads?

Neither Grace.ai nor ChatPDF shows ads.

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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.*