# Centaurus & Device Application vs Unitary Converter

The clearest difference is in-app purchases: Centaurus & Device Application at none against Unitary Converter's 1. Centaurus & Device Application also leads on ads (none vs shown) and update cadence (every 8 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Unitary Converter sells 1 one-off in-app purchase. Centaurus & Device Application asks for nothing beyond the download.

Centaurus & Device Application ships an update every 8 days, Unitary Converter every 2 months. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Centaurus & Device Application | Unitary Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/centaurus-and-device-application/id6747068661/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 8 days** | Every 2 months |
| Monetization | Free | — |
| Size | 46 MB | 18 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [志强 古](https://appshunter.io/developer/1815214006) | [Hakan Buran](https://appshunter.io/developer/1843556431) |

## What reviewers say

### Centaurus & Device Application

[App page](https://appshunter.io/ios/app/centaurus-and-device-application/id6747068661)

This utility app pairs with a smart device to let you control its functions. You can view and change settings, and even upload custom wallpapers to sync with your device.

**Highlights:** Connect to smart device, View and modify function parameters, Switch wallpapers, Upload custom wallpapers, Sync with device

**Features:** macOS Compatibility

**In-app purchases:** none


### Unitary Converter

[App page](https://appshunter.io/ios/app/unitary-converter/id6758658949)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Centaurus & Device Application free?

Centaurus & Device Application is free to download, with no in-app purchases.

### Is Unitary Converter free?

Unitary Converter is free to download, with in-app purchases available.

### Do Centaurus & Device Application or Unitary Converter have ads?

Unitary Converter shows ads; Centaurus & Device Application does not.

### Which is updated more often, Centaurus & Device Application or Unitary Converter?

Centaurus & Device Application ships an update every 8 days, and Unitary Converter every 2 months. Most recently, Centaurus & Device Application was updated on October 5, 2026 and Unitary Converter 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.*