# Secusystem vs Nebessa ONE

The clearest difference is update cadence: Nebessa ONE at every 5 days against Secusystem's every 6 weeks. 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.

Secusystem ships an update every 6 weeks, Nebessa ONE every 5 days. The most recent releases landed on September 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Secusystem | Nebessa ONE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Size | 114 MB | 50 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [China Security & Fire IOT Sensing Co., Ltd.](https://appshunter.io/developer/914724038) | [K8 Properties doo](https://appshunter.io/developer/6794310078) |

## What reviewers say

### Secusystem

[App page](https://appshunter.io/ios/app/secusystem/id6447154033)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nebessa ONE

[App page](https://appshunter.io/ios/app/nebessa-one/id6794310076)

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

**In-app purchases:** none


## Frequently asked questions

### Is Secusystem free?

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

### Is Nebessa ONE free?

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

### Do Secusystem or Nebessa ONE have ads?

Neither Secusystem nor Nebessa ONE shows ads.

### Which is updated more often, Secusystem or Nebessa ONE?

Secusystem ships an update every 6 weeks, and Nebessa ONE every 5 days. Most recently, Secusystem was updated on September 15, 2026 and Nebessa ONE on October 16, 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.*