# Shock Math Calculator vs Horizon

The clearest difference is update cadence: Shock Math Calculator at every 3 weeks against Horizon's every 2 months. Horizon's advantage is iOS requirement (15.1 vs 17.0). 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.

Shock Math Calculator ships an update every 3 weeks, Horizon every 2 months. The most recent releases landed on October 5, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Shock Math Calculator | Horizon |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 5 MB | 42 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gregory Manley](https://appshunter.io/developer/1650623300) | [Michael Bartos](https://appshunter.io/developer/1896744840) |

## What reviewers say

### Shock Math Calculator

[App page](https://appshunter.io/ios/app/shock-math-calculator/id6443923018)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Horizon

[App page](https://appshunter.io/ios/app/horizon-ar/id6770460809)

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

**In-app purchases:** none


## Frequently asked questions

### Is Shock Math Calculator free?

Shock Math Calculator is free to download, with no in-app purchases.

### Is Horizon free?

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

### Do Shock Math Calculator or Horizon have ads?

Neither Shock Math Calculator nor Horizon shows ads.

### Which is updated more often, Shock Math Calculator or Horizon?

Shock Math Calculator ships an update every 3 weeks, and Horizon every 2 months. Most recently, Shock Math Calculator was updated on October 5, 2026 and Horizon on October 23, 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.*