# MailSwift vs 0Day

The clearest difference is price: 0Day at Free against MailSwift's $9.99. MailSwift's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

0Day is free to download; MailSwift costs $9.99 up front. 0Day sells 2 in-app purchases, starting at $3.99 per month. MailSwift asks for nothing beyond the download.

## The numbers

| Metric | MailSwift | 0Day |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/0day-cve-and-exploit-alerts/id6761655372/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Monetization | — | Freemium |
| Size | 14 MB | 10 MB |
| Requires iOS | 18.5 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [ELIDRON LLC](https://appshunter.io/developer/1821954648) | [Richard Lous](https://appshunter.io/developer/1890695617) |

## What reviewers say

### MailSwift

[App page](https://appshunter.io/ios/app/mailswift/id6756153545)

**Features:** macOS Compatibility

**In-app purchases:** none


### 0Day

[App page](https://appshunter.io/ios/app/0day-cve-and-exploit-alerts/id6761655372)

Receive immediate alerts for zero-day vulnerabilities, supply chain attacks, and compromised packages relevant to your specific technology stack. Get early warnings before they hit the news cycle, enabling proactive security measures.

**Highlights:** Zero-day vulnerability alerts, Supply chain attack notifications, Compromised package warnings, Stack-aware filtering, Early warning system, Push notifications, Full alert archive

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 0Day Pro | $3.99 | per month |
| 0Day Pro | $29.99 | per year |


## Frequently asked questions

### Is MailSwift free?

MailSwift costs $9.99, with no in-app purchases.

### Is 0Day free?

0Day is free to download, with in-app purchases available.

### Do MailSwift or 0Day have ads?

Neither MailSwift nor 0Day 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.*