# ChatPDF vs Whispr

ChatPDF and Whispr are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. ChatPDF sells 2 in-app purchases, starting at $0.99 per 7 days and Whispr sells 5 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | ChatPDF | Whispr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 47 MB | 115 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ikhwan Noorsetyo](https://appshunter.io/developer/1739847271) | [Attechy Ltd](https://appshunter.io/developer/1873461603) |

## What reviewers say

### 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 |


### Whispr

[App page](https://appshunter.io/ios/app/whispr-your-ai-second-brain/id6758618656)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Whispr Pro – Monthly | $12.99 | per month |
| Whispr Max - Monthly | $39.99 | per month |
| Whispr Pro - Yearly | $89.99 | per year |
| Whispr Max - Yearly | $389.99 | per year |
| Whispr Pro - Lifetime | $389.99 | one-time |


## Frequently asked questions

### Is ChatPDF free?

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

### Is Whispr free?

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

### Do ChatPDF or Whispr have ads?

Neither ChatPDF nor Whispr 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.*