# Blue Switch vs Bluetooth Serial Connect

The clearest difference is in-app purchases: Bluetooth Serial Connect at none against Blue Switch's 1. Bluetooth Serial Connect also leads on iOS requirement (16.2 vs 18.0). Blue Switch's advantage is update cadence (every 3 months vs every 10 months) and review sentiment (17% vs 0%). On price, rating, ads and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 3.8 for Blue Switch against 3.7 for Bluetooth Serial Connect. That said, the two scores are not equally well evidenced: Blue Switch has 43 ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 17% of Blue Switch's written reviews are positive against 0% of Bluetooth Serial Connect's.

Blue Switch ships an update every 3 months, Bluetooth Serial Connect every 10 months. The most recent releases landed on September 23, 2026 and July 21, 2026 respectively.

## The numbers

| Metric | Blue Switch | Bluetooth Serial Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (43 ratings)](https://appshunter.io/ios/app/blue-switch/id828280876/reviews)** | [3.7 (7 ratings)](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821/reviews) |
| Number of ratings | **43** | 7 |
| Positive reviews | **16.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 10 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 39 MB | 24 MB |
| Requires iOS | 18.0 | **16.2** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vitalij Schaefer](https://appshunter.io/developer/393749449) | [Henry Abrahamsen](https://appshunter.io/developer/1544660671) |

## 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 |


### Bluetooth Serial Connect

[App page](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821)

Control your Arduino projects with your phone. Design custom interfaces with buttons, joysticks, and displays to send and receive data via Bluetooth low-energy modules. An integrated library simplifies the connection process.

**Highlights:** Customizable control boards, Button and joystick inputs, Display integration, Bluetooth low-energy module support, Arduino library for easy integration

**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 Bluetooth Serial Connect free?

Bluetooth Serial Connect is free to download, with no in-app purchases.

### Which has better reviews, Blue Switch or Bluetooth Serial Connect?

Blue Switch is rated higher. Blue Switch averages 3.8 out of 5 from 43 ratings, while Bluetooth Serial Connect averages 3.7 from 7 ratings.

### Do Blue Switch or Bluetooth Serial Connect have ads?

Both Blue Switch and Bluetooth Serial Connect show ads.

### Which is updated more often, Blue Switch or Bluetooth Serial Connect?

Blue Switch ships an update every 3 months, and Bluetooth Serial Connect every 10 months. Most recently, Blue Switch was updated on September 23, 2026 and Bluetooth Serial Connect on July 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.*