# 0Day vs Shepherd

The clearest difference is chart position: 0Day at #195 against Shepherd's unranked. Shepherd's advantage is iOS requirement (16.0 vs 18.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. 0Day sells 2 in-app purchases, starting at $3.99 per month and Shepherd sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for 0Day against 5.0 for Shepherd. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

0Day ships an update every 5 days, Shepherd weekly. The most recent releases landed on November 5, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | 0Day | Shepherd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/0day-cve-and-exploit-alerts/id6761655372/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/shepherd-ai-agents-and-ssh/id6783049126/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Freemium | Freemium |
| Best chart rank | **#195** | — |
| Size | 10 MB | 70 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Richard Lous](https://appshunter.io/developer/1890695617) | [Egor Kolesnikov](https://appshunter.io/developer/1461779773) |

## What reviewers say

### 0Day

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

**Currently charting:** #195 Top Grossing · Developer Tools (US App Store)

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 |


### Shepherd

[App page](https://appshunter.io/ios/app/shepherd-ai-agents-and-ssh/id6783049126)

Control AI coding agents running on your server from your iPhone. Monitor their progress, receive notifications, and interact directly. It also functions as a powerful SSH client with customizable shortcuts and themes.

**Highlights:** Live Activity for agent status, Agent notifications, SSH client with saved connections, Customizable shortcut groups, 500+ terminal themes, Face ID protected private keys, Ghostty terminal emulation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shepherd Pro | $2.99 | per month |
| Shepherd Pro | $19.99 | per year |


## Frequently asked questions

### Is 0Day free?

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

### Is Shepherd free?

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

### Which has better reviews, 0Day or Shepherd?

0Day and Shepherd are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do 0Day or Shepherd have ads?

Neither 0Day nor Shepherd shows ads.

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

0Day ships an update every 5 days, and Shepherd weekly. Most recently, 0Day was updated on November 5, 2026 and Shepherd on November 11, 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.*