# DSD TECH SWITCH vs Bluetooth for Arduino

The clearest difference is in-app purchases: DSD TECH SWITCH at none against Bluetooth for Arduino's 5. DSD TECH SWITCH also leads on iOS requirement (9.3 vs 18.5). Bluetooth for Arduino's advantage is update cadence (every 2 months vs every 29 months). On price, ads and device support there is nothing between them.

Both are free to download. Bluetooth for Arduino sells 5 one-off in-app purchases. DSD TECH SWITCH asks for nothing beyond the download.

DSD TECH SWITCH ships an update every 29 months, Bluetooth for Arduino every 2 months. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | DSD TECH SWITCH | Bluetooth for Arduino |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (44 ratings)](https://appshunter.io/ios/app/bluetooth-for-arduino/id1505096526/reviews)** |
| Number of ratings | — | **44** |
| Positive reviews | — | 45.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 5 MB |
| Requires iOS | **9.3** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [DongGuan DESHIDE TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1718185095) | [Giuseppe Migliore](https://appshunter.io/developer/1505096105) |

## What reviewers say

### DSD TECH SWITCH

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Bluetooth for Arduino

[App page](https://appshunter.io/ios/app/bluetooth-for-arduino/id1505096526)

Transform your iPhone or iPad into a wireless remote control for your Arduino projects. Easily connect to your Bluetooth module and send custom commands via keyboard or pre-designed buttons.

**Highlights:** Bluetooth remote control, Arduino project control, Custom command sending, Keyboard input, Button interface, Connect to Bluetooth modules

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Custom | $3.99 | one-time |
| Gamepad | $3.99 | one-time |
| Terminal | $3.99 | one-time |
| Unlock everything | $11.99 | one-time |


## Frequently asked questions

### Is DSD TECH SWITCH free?

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

### Is Bluetooth for Arduino free?

Bluetooth for Arduino is free to download, with in-app purchases available.

### Do DSD TECH SWITCH or Bluetooth for Arduino have ads?

Neither DSD TECH SWITCH nor Bluetooth for Arduino shows ads.

### Which is updated more often, DSD TECH SWITCH or Bluetooth for Arduino?

DSD TECH SWITCH ships an update every 29 months, and Bluetooth for Arduino every 2 months. Most recently, DSD TECH SWITCH was updated on September 20, 2026 and Bluetooth for Arduino on September 21, 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.*