# BookyAI vs PDF

The clearest difference is update cadence: BookyAI at weekly against PDF's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. BookyAI sells 3 one-off in-app purchases and PDF sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

BookyAI ships an update weekly, PDF every 3 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | BookyAI | PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 11 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [DIGITAL APP](https://appshunter.io/developer/1859862580) | [爱华 刘](https://appshunter.io/developer/1797362038) |

## What reviewers say

### BookyAI

[App page](https://appshunter.io/ios/app/bookyai/id6757665994)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Credits Pack | $1.99 | one-time |
| 15 Credits Pack | $4.99 | one-time |
| 50 Credits Pack | $9.99 | one-time |


### PDF

[App page](https://appshunter.io/ios/app/pdf-pro-editor-and-scanner/id6797690967)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF-PRO Monthly | $3.99 | per month |
| PDF-PRO Yearly (3-Day Trial) | $24.99 | per year |
| PDF-PRO Lifetime Pass | $59.99 | one-time |


## Frequently asked questions

### Is BookyAI free?

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

### Is PDF free?

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

### Do BookyAI or PDF have ads?

Neither BookyAI nor PDF shows ads.

### Which is updated more often, BookyAI or PDF?

BookyAI ships an update weekly, and PDF every 3 weeks. Most recently, BookyAI was updated on October 28, 2026 and PDF on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*