# TSIR Bluetooth vs diBlue

The clearest difference is review sentiment: TSIR Bluetooth at 100% against diBlue's 40%. TSIR Bluetooth also leads on rating (4.5 vs 2.8) and iOS requirement (9.0 vs 15.0). diBlue's advantage is update cadence (monthly vs every 38 months) and ratings volume (18 vs 2). On price, ads, in-app purchases and monetization model 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 2.8. That said, the two scores are not equally well evidenced: diBlue has 18 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of TSIR Bluetooth's written reviews are positive against 40% of diBlue's.

TSIR Bluetooth ships an update every 38 months, diBlue monthly. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | TSIR Bluetooth | diBlue |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/tsir-bluetooth/id897941036/reviews)** | [2.8 (18 ratings)](https://appshunter.io/ios/app/diblue/id1441528159/reviews) |
| Number of ratings | 2 | **18** |
| Positive reviews | **100.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Monthly** |
| Monetization | Free | 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


### diBlue

[App page](https://appshunter.io/ios/app/diblue/id1441528159)

This utility app connects to compatible Bluetooth Low Energy devices and DSD TECH relay modules. It allows users to discover devices, send and receive text or HEX data, and control relay modules. The interface supports multiple languages and stores all data locally without requiring an account or displaying ads.

**Highlights:** Discover and organize BLE devices, Send and receive Text or HEX data, Repeat commands at intervals, Control DSD TECH relay modules, Multi-language interface, Local data storage, Ad-free experience

**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 diBlue free?

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

### Which has better reviews, TSIR Bluetooth or diBlue?

TSIR Bluetooth is rated higher. TSIR Bluetooth averages 4.5 out of 5 from 2 ratings, while diBlue averages 2.8 from 18 ratings.

### Do TSIR Bluetooth or diBlue have ads?

Neither TSIR Bluetooth nor diBlue shows ads.

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

TSIR Bluetooth ships an update every 38 months, and diBlue monthly. Most recently, TSIR Bluetooth was updated on November 1, 2026 and diBlue on November 6, 2026.

---

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