# SwiftPDF vs Zybra Cast

The clearest difference is in-app purchases: SwiftPDF at none against Zybra Cast's 3. SwiftPDF also leads on iOS requirement (13.0 vs 17.0). Zybra Cast's advantage is update cadence (daily vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. Zybra Cast sells 3 in-app purchases, starting at $2.99 per 7 days. SwiftPDF asks for nothing beyond the download.

SwiftPDF ships an update every 13 months, Zybra Cast daily. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | SwiftPDF | Zybra Cast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Daily** |
| Size | 44 MB | 41 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [IINTERGO PTE. LTD.](https://appshunter.io/developer/1703199328) | [Vu Thi Hanh](https://appshunter.io/developer/1884245877) |

## What reviewers say

### SwiftPDF

[App page](https://appshunter.io/ios/app/swiftpdf/id6747748418)

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

**In-app purchases:** none


### Zybra Cast

[App page](https://appshunter.io/ios/app/zybra-cast/id6763694847)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Offers | $2.99 | per 7 days |
| Annual Offers | $19.99 | per year |
| Lifetime Offers | $39.99 | one-time |


## Frequently asked questions

### Is SwiftPDF free?

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

### Is Zybra Cast free?

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

### Do SwiftPDF or Zybra Cast have ads?

Neither SwiftPDF nor Zybra Cast shows ads.

### Which is updated more often, SwiftPDF or Zybra Cast?

SwiftPDF ships an update every 13 months, and Zybra Cast daily. Most recently, SwiftPDF was updated on October 12, 2026 and Zybra Cast on October 18, 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.*