# Smart Bird Identifier vs ChatPDF

The clearest difference is iOS requirement: Smart Bird Identifier at 13.0 against ChatPDF's 15.6. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Smart Bird Identifier sells 1 one-off in-app purchase and ChatPDF sells 2 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Smart Bird Identifier | ChatPDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Size | 38 MB | 47 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nanjibhai Gorasiya](https://appshunter.io/developer/1834066312) | [Ikhwan Noorsetyo](https://appshunter.io/developer/1739847271) |

## What reviewers say

### Smart Bird Identifier

[App page](https://appshunter.io/ios/app/smart-bird-identifier/id6754186981)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $12.99 | one-time |


### 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 Smart Bird Identifier free?

Smart Bird Identifier is free to download, with in-app purchases available.

### Is ChatPDF free?

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

### Do Smart Bird Identifier or ChatPDF have ads?

Neither Smart Bird Identifier 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.*