# KDIGO vs Hackfy

The clearest difference is update cadence: Hackfy at every 4 days against KDIGO's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. KDIGO sells 2 in-app purchases, starting at $5.99 per 7 days and Hackfy sells 5 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

KDIGO ships an update every 10 days, Hackfy every 4 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | KDIGO | Hackfy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hackfy-learn-cybersecurity/id6763367472/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | — | Subscription |
| Size | 38 MB | 113 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eduardo Alexandru Apostu](https://appshunter.io/developer/1871906706) | [Moises Alexis Castillo Zuniga](https://appshunter.io/developer/1895283054) |

## What reviewers say

### KDIGO

[App page](https://appshunter.io/ios/app/kdigo-asistente-de-chat/id6758273227)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KDIGO Premium Semanal | $5.99 | per 7 days |
| KDIGO Premium Mensual | $22.99 | per month |


### Hackfy

[App page](https://appshunter.io/ios/app/hackfy-learn-cybersecurity/id6763367472)

Master cybersecurity with structured learning paths and practical challenges. This app offers direct, technical content for beginners and professionals alike, building a solid foundation and professional methodology. Practice your skills with hands-on exercises and reinforce knowledge with quick quizzes.

**Highlights:** Structured learning paths, Technical and direct content, Practical challenges, Reinforcement quizzes, Beginner-friendly, Professional methodology

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hackfy Premium | $4.99 | per month |
| Hackfy Pro | $4.99 | per 7 days |
| Hackfy Premium | $6.99 | per month |
| Hackfy Pro | $9.99 | per month |
| Hackfy Pro | $39.99 | per year |


## Frequently asked questions

### Is KDIGO free?

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

### Is Hackfy free?

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

### Do KDIGO or Hackfy have ads?

Neither KDIGO nor Hackfy shows ads.

### Which is updated more often, KDIGO or Hackfy?

KDIGO ships an update every 10 days, and Hackfy every 4 days. Most recently, KDIGO was updated on October 25, 2026 and Hackfy on October 28, 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.*