# Blackjack vs AppSec.fyi Mobile

The clearest difference is in-app purchases: AppSec.fyi Mobile at none against Blackjack's 1. AppSec.fyi Mobile also leads on ads (none vs shown) and update cadence (every 2 days vs every 5 weeks). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Blackjack sells 1 one-off in-app purchase. AppSec.fyi Mobile asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Blackjack against 5.0 for AppSec.fyi Mobile. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

Blackjack ships an update every 5 weeks, AppSec.fyi Mobile every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Blackjack | AppSec.fyi Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/blackjack-learn-strategy/id6749189661/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/appsecfyi-mobile/id6762207927/reviews) |
| Number of ratings | **5** | 2 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 60 MB | 38 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Andrew L'Italien](https://appshunter.io/developer/1793030180) | [Carl Sampson](https://appshunter.io/developer/826895008) |

## What reviewers say

### Blackjack

[App page](https://appshunter.io/ios/app/blackjack-learn-strategy/id6749189661)

Master blackjack strategy with realistic hands and instant feedback. Practice optimal decisions, view strategy charts, and track your progress. Customize rules and themes for a personalized learning experience.

**Highlights:** Hands-on practice with realistic hands, Instant feedback on decisions, Detailed strategy charts, Customizable rule settings, Performance statistics tracking, Customizable themes including dark mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | one-time |


### 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


## Frequently asked questions

### Is Blackjack free?

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

### Is AppSec.fyi Mobile free?

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

### Which has better reviews, Blackjack or AppSec.fyi Mobile?

Blackjack and AppSec.fyi Mobile are both rated 5.0 out of 5 on the App Store, from 5 and 2 ratings respectively.

### Do Blackjack or AppSec.fyi Mobile have ads?

Blackjack shows ads; AppSec.fyi Mobile does not.

### Which is updated more often, Blackjack or AppSec.fyi Mobile?

Blackjack ships an update every 5 weeks, and AppSec.fyi Mobile every 2 days. Most recently, Blackjack was updated on October 24, 2026 and AppSec.fyi Mobile on October 24, 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.*