# K2 Horizon vs BrieFolio

The clearest difference is in-app purchases: K2 Horizon at none against BrieFolio's 1. K2 Horizon also leads on update cadence (every 5 days vs every 5 months) and iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. BrieFolio sells 1 in-app purchase, starting at $2.99 per month. K2 Horizon asks for nothing beyond the download.

K2 Horizon ships an update every 5 days, BrieFolio every 5 months. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | K2 Horizon | BrieFolio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 months |
| Size | 43 MB | 6 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Mohamed bin Zayed University of Artificial Intelligence](https://appshunter.io/developer/1809622856) | [ehsan azish](https://appshunter.io/developer/1622575303) |

## What reviewers say

### K2 Horizon

[App page](https://appshunter.io/ios/app/k2-horizon/id6744862356)

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

**In-app purchases:** none


### BrieFolio

[App page](https://appshunter.io/ios/app/briefolio/id6762557115)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BrieFolio Monthly Subscription | $2.99 | per month |


## Frequently asked questions

### Is K2 Horizon free?

K2 Horizon is free to download, with no in-app purchases.

### Is BrieFolio free?

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

### Do K2 Horizon or BrieFolio have ads?

Neither K2 Horizon nor BrieFolio shows ads.

### Which is updated more often, K2 Horizon or BrieFolio?

K2 Horizon ships an update every 5 days, and BrieFolio every 5 months. Most recently, K2 Horizon was updated on November 12, 2026 and BrieFolio on November 13, 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.*