# TSIR Bluetooth vs Bluetooth Serial Connect

The clearest difference is review sentiment: TSIR Bluetooth at 100% against Bluetooth Serial Connect's 0%. TSIR Bluetooth also leads on rating (4.5 vs 3.7) and ads (none vs shown). Bluetooth Serial Connect's advantage is update cadence (every 10 months vs every 38 months) and ratings volume (7 vs 2). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TSIR Bluetooth holds the better App Store score, 4.5 against 3.7. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews point the same way: 100% of TSIR Bluetooth's written reviews are positive against 0% of Bluetooth Serial Connect's.

TSIR Bluetooth ships an update every 38 months, Bluetooth Serial Connect every 10 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | TSIR Bluetooth | Bluetooth Serial Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/tsir-bluetooth/id897941036/reviews)** | [3.7 (7 ratings)](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821/reviews) |
| Number of ratings | 2 | **7** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Every 10 months** |
| Monetization | Free | Free |
| Size | 3 MB | 24 MB |
| Requires iOS | **9.0** | 16.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [飞 吴](https://appshunter.io/developer/645447334) | [Henry Abrahamsen](https://appshunter.io/developer/1544660671) |

## What reviewers say

### TSIR Bluetooth

[App page](https://appshunter.io/ios/app/tsir-bluetooth/id897941036)

Control a Bluetooth relay board with optically isolated inputs and an OLED display via your computer or smartphone. This powerful and user-friendly application manages four volt-free contact relay outputs, each capable of handling up to 10 Amps.

**Highlights:** Bluetooth relay board control, Optically isolated inputs, OLED display integration, Temperature sensor port, Four 10A relay outputs, Computer and smartphone control

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

**In-app purchases:** none


### 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 TSIR Bluetooth free?

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

### Is Bluetooth Serial Connect free?

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

### Which has better reviews, TSIR Bluetooth or Bluetooth Serial Connect?

TSIR Bluetooth is rated higher. TSIR Bluetooth averages 4.5 out of 5 from 2 ratings, while Bluetooth Serial Connect averages 3.7 from 7 ratings.

### Do TSIR Bluetooth or Bluetooth Serial Connect have ads?

Bluetooth Serial Connect shows ads; TSIR Bluetooth does not.

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

TSIR Bluetooth ships an update every 38 months, and Bluetooth Serial Connect every 10 months. Most recently, TSIR Bluetooth was updated on November 1, 2026 and Bluetooth Serial Connect on November 3, 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.*