# Sessix vs 0Day

The clearest difference is in-app purchases: Sessix at none against 0Day's 2. Sessix also leads on device support (4 vs 1) and iOS requirement (15.1 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. 0Day sells 2 in-app purchases, starting at $3.99 per month. Sessix asks for nothing beyond the download.

Sessix ships an update every 10 days, 0Day every 5 days. The most recent releases landed on October 2, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Sessix | 0Day |
| --- | --- | --- |
| Price | Free | 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 10 days | **Every 5 days** |
| Monetization | — | Freemium |
| Size | 50 MB | 10 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ka Chun CHEUNG](https://appshunter.io/developer/1475447863) | [Richard Lous](https://appshunter.io/developer/1890695617) |

## What reviewers say

### Sessix

[App page](https://appshunter.io/ios/app/sessix-mobile-vibe-coding-app/id6760002805)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**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 Sessix free?

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

### Is 0Day free?

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

### Do Sessix or 0Day have ads?

Neither Sessix nor 0Day shows ads.

### Which is updated more often, Sessix or 0Day?

Sessix ships an update every 10 days, and 0Day every 5 days. Most recently, Sessix was updated on October 2, 2026 and 0Day on October 19, 2026.

---

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