# BCBLEDemo vs TJDZ

The clearest difference is iOS requirement: BCBLEDemo at 9.0 against TJDZ's 12.0. 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 27, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | BCBLEDemo | TJDZ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/bcbledemo-ble/id1172156353/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 1 MB | 33 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Holtek Semiconductor(China) Inc](https://appshunter.io/developer/1052056181) | [Guangzhou Tianjian Automotive Products Co., Ltd](https://appshunter.io/developer/1716284778) |

## What reviewers say

### BCBLEDemo

[App page](https://appshunter.io/ios/app/bcbledemo-ble/id1172156353)

This utility app demonstrates the functionality of a demo board by controlling lights via button presses. It allows users to turn on and off lights on the demo board by interacting with buttons within the application.

**Highlights:** Control demo board lights, Button press to turn on lights, Button release to turn off lights, App displays corresponding light status

**In-app purchases:** none


### TJDZ

[App page](https://appshunter.io/ios/app/tjdz/id6471932553)

**In-app purchases:** none


## Frequently asked questions

### Is BCBLEDemo free?

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

### Is TJDZ free?

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

### Do BCBLEDemo or TJDZ have ads?

Neither BCBLEDemo nor TJDZ shows ads.

### Which is updated more often, BCBLEDemo or TJDZ?

BCBLEDemo ships an update every 2 months, and TJDZ every 2 months. Most recently, BCBLEDemo was updated on September 27, 2026 and TJDZ on September 23, 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.*