# Blue Switch vs DSD TECH Bluetooth

The clearest difference is rating: Blue Switch at 3.8 against DSD TECH Bluetooth's 2.8. DSD TECH Bluetooth's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

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

Blue Switch holds the better App Store score, 3.8 against 2.8. Both are backed by a comparable volume of ratings — 43 and 18 respectively. Written reviews complicate that: 17% of Blue Switch's written reviews are positive against 40% of DSD TECH Bluetooth's, so the app with the better star average is not the one people write more warmly about.

Blue Switch ships an update every 3 months, DSD TECH Bluetooth every 2 months. The most recent releases landed on September 23, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Blue Switch | DSD TECH Bluetooth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (43 ratings)](https://appshunter.io/ios/app/blue-switch/id828280876/reviews)** | [2.8 (18 ratings)](https://appshunter.io/ios/app/dsd-tech-bluetooth/id1441528159/reviews) |
| Number of ratings | **43** | 18 |
| Positive reviews | 16.7% of reviews | **40.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 39 MB | 2 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 Bluetooth

[App page](https://appshunter.io/ios/app/dsd-tech-bluetooth/id1441528159)

This utility app facilitates efficient communication with specific DSD TECH Bluetooth modules. It supports a range of relay and BLE modules, streamlining interactions and saving users time. Compatible with various DSD TECH Bluetooth devices.

**Highlights:** Efficient communication with Bluetooth modules, Supports DSD TECH Bluetooth Relay modules, Supports DSD TECH SH-HC-08, SH-M08, HM-10, SH-11 modules, Supports DSD TECH Bluetooth BLE modules, Saves user time

**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 Bluetooth free?

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

### Which has better reviews, Blue Switch or DSD TECH Bluetooth?

Blue Switch is rated higher. Blue Switch averages 3.8 out of 5 from 43 ratings, while DSD TECH Bluetooth averages 2.8 from 18 ratings.

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

Blue Switch shows ads; DSD TECH Bluetooth does not.

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

Blue Switch ships an update every 3 months, and DSD TECH Bluetooth every 2 months. Most recently, Blue Switch was updated on September 23, 2026 and DSD TECH Bluetooth on September 29, 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.*