# TSIR Bluetooth vs diSwitch

The clearest difference is iOS requirement: TSIR Bluetooth at 9.0 against diSwitch's 15.0. On price, update cadence, ads and in-app purchases 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 ships an update every 38 months, diSwitch every 23 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | TSIR Bluetooth | diSwitch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/tsir-bluetooth/id897941036/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 23 months** |
| Monetization | Free | — |
| Size | 3 MB | 1 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [飞 吴](https://appshunter.io/developer/645447334) | [DongGuan DESHIDE TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1718185095) |

## 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


### diSwitch

[App page](https://appshunter.io/ios/app/diswitch/id1483733224)

**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 diSwitch free?

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

### Do TSIR Bluetooth or diSwitch have ads?

Neither TSIR Bluetooth nor diSwitch shows ads.

### Which is updated more often, TSIR Bluetooth or diSwitch?

TSIR Bluetooth ships an update every 38 months, and diSwitch every 23 months. Most recently, TSIR Bluetooth was updated on November 1, 2026 and diSwitch on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*