# OWASP BLT vs CHRONOS II

The clearest difference is update cadence: CHRONOS II at fortnightly against OWASP BLT's every 6 months. OWASP BLT's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OWASP BLT ships an update every 6 months, CHRONOS II fortnightly. The most recent releases landed on October 27, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | OWASP BLT | CHRONOS II |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chronos-ii/id6794745230/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 33 MB | 7 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [OWASP Foundation, inc](https://appshunter.io/developer/1683410774) | [ReVeNG System](https://appshunter.io/developer/1098010919) |

## What reviewers say

### OWASP BLT

[App page](https://appshunter.io/ios/app/owasp-blt/id6448071954)

**Features:** macOS Compatibility

**In-app purchases:** none


### CHRONOS II

[App page](https://appshunter.io/ios/app/chronos-ii/id6794745230)

Experience a cyber thriller played entirely through a command line. Follow a digital entity through interconnected systems, solving interactive terminal puzzles inspired by real hacking events. Explore simulated networks and uncover a compelling narrative.

**Highlights:** Terminal-driven chapters, Story spanning hacking history, Simulated networks and tools, Hidden discoveries and multiple endings, Built-in notes and keyboard, Offline play, No ads or tracking

**In-app purchases:** none


## Frequently asked questions

### Is OWASP BLT free?

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

### Is CHRONOS II free?

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

### Do OWASP BLT or CHRONOS II have ads?

Neither OWASP BLT nor CHRONOS II shows ads.

### Which is updated more often, OWASP BLT or CHRONOS II?

OWASP BLT ships an update every 6 months, and CHRONOS II fortnightly. Most recently, OWASP BLT was updated on October 27, 2026 and CHRONOS II on October 10, 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.*