# Duna's AI Scanner vs PaperGuard

The clearest difference is in-app purchases: Duna's AI Scanner at none against PaperGuard's 2. Duna's AI Scanner also leads on update cadence (daily vs every 2 months). PaperGuard's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PaperGuard sells 2 in-app purchases, starting at $2.99 per month. Duna's AI Scanner asks for nothing beyond the download.

Duna's AI Scanner ships an update daily, PaperGuard every 2 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | Duna's AI Scanner | PaperGuard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 2 months |
| Size | 7 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nam Vu Hoai](https://appshunter.io/developer/1886460444) | [Przemyslaw Bocer](https://appshunter.io/developer/6798315910) |

## What reviewers say

### Duna's AI Scanner

[App page](https://appshunter.io/ios/app/dunas-ai-scanner/id6770083068)

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

**In-app purchases:** none


### PaperGuard

[App page](https://appshunter.io/ios/app/paperguard-private-scanner/id6803135699)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PaperGuard Pro Monthly | $2.99 | per month |
| PaperGuard Pro Yearly | $14.99 | per year |


## Frequently asked questions

### Is Duna's AI Scanner free?

Duna's AI Scanner is free to download, with no in-app purchases.

### Is PaperGuard free?

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

### Do Duna's AI Scanner or PaperGuard have ads?

Duna's AI Scanner shows ads; PaperGuard does not.

### Which is updated more often, Duna's AI Scanner or PaperGuard?

Duna's AI Scanner ships an update daily, and PaperGuard every 2 months. Most recently, Duna's AI Scanner was updated on October 31, 2026 and PaperGuard on October 31, 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.*