# Onyyx vs Aca

The clearest difference is ads: Onyyx at none against Aca's shown. Aca's advantage is update cadence (every 5 weeks vs every 3 months) and iOS requirement (11.0 vs 15.1). On price, 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.

Onyyx ships an update every 3 months, Aca every 5 weeks. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Onyyx | Aca |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (6 ratings)](https://appshunter.io/ios/app/onyyx/id1664540121/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 40 MB | 26 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Inhep Electronics Holdings (Pty) Ltd.](https://appshunter.io/developer/1228149661) | [Gregory Hall](https://appshunter.io/developer/1555762243) |

## What reviewers say

### Onyyx

[App page](https://appshunter.io/ios/app/onyyx/id1664540121)

Control a wireless smart security system remotely via a mobile app or keyring transmitter. Compatible with various indoor and outdoor detectors, it offers easy installation and configuration for diverse security needs.

**Highlights:** Remote system control, Keyring transmitter compatibility, Indoor and outdoor detector support, Easy installation and configuration, Control room monitoring integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Aca

[App page](https://appshunter.io/ios/app/aca-life/id6740775060)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Onyyx free?

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

### Is Aca free?

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

### Do Onyyx or Aca have ads?

Aca shows ads; Onyyx does not.

### Which is updated more often, Onyyx or Aca?

Onyyx ships an update every 3 months, and Aca every 5 weeks. Most recently, Onyyx was updated on October 19, 2026 and Aca on October 18, 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.*