# Blue Switch vs DSD TECH SWITCH

The clearest difference is in-app purchases: DSD TECH SWITCH at none against Blue Switch's 1. DSD TECH SWITCH also leads on ads (none vs shown) and iOS requirement (9.3 vs 18.0). Blue Switch's advantage is update cadence (every 3 months vs every 29 months). On price and device support there is nothing between them.

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

Blue Switch ships an update every 3 months, DSD TECH SWITCH every 29 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Blue Switch | DSD TECH SWITCH |
| --- | --- | --- |
| 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** | Every 29 months |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 3 MB |
| Requires iOS | 18.0 | **9.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vitalij Schaefer](https://appshunter.io/developer/393749449) | [DongGuan DESHIDE TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1718185095) |

## 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 |


### DSD TECH SWITCH

[App page](https://appshunter.io/ios/app/dsd-tech-switch/id1483733224)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Blue Switch free?

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

### Is DSD TECH SWITCH free?

DSD TECH SWITCH is free to download, with no in-app purchases.

### Do Blue Switch or DSD TECH SWITCH have ads?

Blue Switch shows ads; DSD TECH SWITCH does not.

### Which is updated more often, Blue Switch or DSD TECH SWITCH?

Blue Switch ships an update every 3 months, and DSD TECH SWITCH every 29 months. Most recently, Blue Switch was updated on September 23, 2026 and DSD TECH SWITCH on September 20, 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.*