# Blue Switch vs 릴레이 컨트롤러

The clearest difference is in-app purchases: 릴레이 컨트롤러 at none against Blue Switch's 1. 릴레이 컨트롤러 also leads on ads (none vs shown) and iOS requirement (15.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Blue Switch sells 1 one-off in-app purchase. 릴레이 컨트롤러 asks for nothing beyond the download.

## The numbers

| Metric | Blue Switch | 릴레이 컨트롤러 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (43 ratings)](https://appshunter.io/ios/app/blue-switch/id828280876/reviews)** | — |
| Number of ratings | **43** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 20 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vitalij Schaefer](https://appshunter.io/developer/393749449) | [chaerin yeon](https://appshunter.io/developer/1848571048) |

## What reviewers say

### Blue Switch

[App page](https://appshunter.io/ios/app/blue-switch/id828280876)

Control 2, 4, or 8 channel Bluetooth BLE relay modules from your iPhone or iPad. Assign custom names to modules and individual relays for easy identification and management. Enhance security by changing the default password.

**Highlights:** Control 2, 4, or 8 channel relay modules, Bluetooth BLE connectivity, Assign custom module aliases, Assign custom relay aliases, Change default password for security, Connect to multiple modules

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $17.99 | one-time |


### 릴레이 컨트롤러

[App page](https://appshunter.io/ios/app/id6809135772)

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

**In-app purchases:** none


## Frequently asked questions

### Is Blue Switch free?

Blue Switch is free to download, with in-app purchases available.

### Is 릴레이 컨트롤러 free?

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

### Do Blue Switch or 릴레이 컨트롤러 have ads?

Blue Switch shows ads; 릴레이 컨트롤러 does not.

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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.*