# AppSec.fyi Mobile vs Kali Linux Advanced AI Guide

The clearest difference is in-app purchases: AppSec.fyi Mobile at none against Kali Linux Advanced AI Guide's 3. AppSec.fyi Mobile also leads on update cadence (every 2 days vs every 5 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Kali Linux Advanced AI Guide sells 3 in-app purchases, starting at $2.99 per 7 days. AppSec.fyi Mobile asks for nothing beyond the download.

AppSec.fyi Mobile ships an update every 2 days, Kali Linux Advanced AI Guide every 5 days. The most recent releases landed on October 2, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | AppSec.fyi Mobile | Kali Linux Advanced AI Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/appsecfyi-mobile/id6762207927/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | Free | — |
| Size | 38 MB | 47 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Carl Sampson](https://appshunter.io/developer/826895008) | [Gautam Raiyani](https://appshunter.io/developer/1808973633) |

## What reviewers say

### AppSec.fyi Mobile

[App page](https://appshunter.io/ios/app/appsecfyi-mobile/id6762207927)

Access a vast library of expert-curated cybersecurity knowledge, including articles, tools, and definitions. Explore over 25 security categories and discover connections between concepts. Save content for offline reading and stay updated with regular additions.

**Highlights:** 3,000+ curated cybersecurity resources, 25+ specialized security categories, Interactive topic explorer, Comprehensive security glossary, Offline reading, Regular content updates

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

**In-app purchases:** none


### Kali Linux Advanced AI Guide

[App page](https://appshunter.io/ios/app/kali-linux-advanced-ai-guide/id6778069915)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KaliOps Weekly Plan | $2.99 | per 7 days |
| KaliOps Monthly Plan | $7.99 | per month |
| KaliOps Yearly Plan | $14.99 | per year |


## Frequently asked questions

### Is AppSec.fyi Mobile free?

AppSec.fyi Mobile is free to download, with no in-app purchases.

### Is Kali Linux Advanced AI Guide free?

Kali Linux Advanced AI Guide is free to download, with in-app purchases available.

### Do AppSec.fyi Mobile or Kali Linux Advanced AI Guide have ads?

Neither AppSec.fyi Mobile nor Kali Linux Advanced AI Guide shows ads.

### Which is updated more often, AppSec.fyi Mobile or Kali Linux Advanced AI Guide?

AppSec.fyi Mobile ships an update every 2 days, and Kali Linux Advanced AI Guide every 5 days. Most recently, AppSec.fyi Mobile was updated on October 2, 2026 and Kali Linux Advanced AI Guide on October 20, 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.*