# Horizon Sigma vs DSC ONE

The clearest difference is iOS requirement: Horizon Sigma at 13.0 against DSC ONE's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Horizon Sigma ships an update every 5 days, DSC ONE weekly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Horizon Sigma | DSC ONE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Size | 27 MB | 148 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Hoang Hiep Ung](https://appshunter.io/developer/1896587718) | [DSC SECURITIES JOINT STOCK COMPANY](https://appshunter.io/developer/1555216581) |

## What reviewers say

### Horizon Sigma

[App page](https://appshunter.io/ios/app/horizon-sigma/id6768587492)

**Features:** macOS Compatibility

**In-app purchases:** none


### DSC ONE

[App page](https://appshunter.io/ios/app/dsc-one/id6774065890)

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

**In-app purchases:** none


## Frequently asked questions

### Is Horizon Sigma free?

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

### Is DSC ONE free?

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

### Do Horizon Sigma or DSC ONE have ads?

Neither Horizon Sigma nor DSC ONE shows ads.

### Which is updated more often, Horizon Sigma or DSC ONE?

Horizon Sigma ships an update every 5 days, and DSC ONE weekly. Most recently, Horizon Sigma was updated on October 28, 2026 and DSC ONE on October 24, 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.*