# K2 Horizon vs Schedule Block Builder

The clearest difference is update cadence: K2 Horizon at every 5 days against Schedule Block Builder's every 3 months. K2 Horizon also leads on iOS requirement (15.0 vs 17.6). 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.

K2 Horizon ships an update every 5 days, Schedule Block Builder every 3 months. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | K2 Horizon | Schedule Block Builder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 months |
| Size | 43 MB | 16 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Mohamed bin Zayed University of Artificial Intelligence](https://appshunter.io/developer/1809622856) | [Cezar Beltrao](https://appshunter.io/developer/1895027273) |

## 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


### Schedule Block Builder

[App page](https://appshunter.io/ios/app/schedule-block-builder/id6762819276)

**In-app purchases:** none


## Frequently asked questions

### Is K2 Horizon free?

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

### Is Schedule Block Builder free?

Schedule Block Builder is free to download, with no in-app purchases.

### Do K2 Horizon or Schedule Block Builder have ads?

Neither K2 Horizon nor Schedule Block Builder shows ads.

### Which is updated more often, K2 Horizon or Schedule Block Builder?

K2 Horizon ships an update every 5 days, and Schedule Block Builder every 3 months. Most recently, K2 Horizon was updated on October 7, 2026 and Schedule Block Builder on October 17, 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.*