# AuroraPDF vs Mail Sentinel

The clearest difference is in-app purchases: Mail Sentinel at none against AuroraPDF's 2. AuroraPDF's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. AuroraPDF sells 2 in-app purchases, starting at $3.99 per 7 days. Mail Sentinel asks for nothing beyond the download.

## The numbers

| Metric | AuroraPDF | Mail Sentinel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Size | 48 MB | 4 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MEHMET ABACI](https://appshunter.io/developer/1865171129) | [Sky Benson](https://appshunter.io/developer/1839805807) |

## What reviewers say

### AuroraPDF

[App page](https://appshunter.io/ios/app/aurorapdf-pdf-chat-and-summary/id6757192011)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Aurora Pro Yearly | $49.99 | per year |


### Mail Sentinel

[App page](https://appshunter.io/ios/app/mail-sentinel/id6757452962)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AuroraPDF free?

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

### Is Mail Sentinel free?

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

### Do AuroraPDF or Mail Sentinel have ads?

Neither AuroraPDF nor Mail Sentinel 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.*