# DSD TECH Bluetooth vs Chess Clock Blitz

The clearest difference is in-app purchases: DSD TECH Bluetooth at none against Chess Clock Blitz's 2. DSD TECH Bluetooth also leads on iOS requirement (9.3 vs 15.1). Chess Clock Blitz's advantage is update cadence (every 3 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Chess Clock Blitz sells 2 in-app purchases, starting at $3.99 per month. DSD TECH Bluetooth asks for nothing beyond the download.

DSD TECH Bluetooth ships an update every 2 months, Chess Clock Blitz every 3 days. The most recent releases landed on September 29, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | DSD TECH Bluetooth | Chess Clock Blitz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (18 ratings)](https://appshunter.io/ios/app/dsd-tech-bluetooth/id1441528159/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 2 MB | 60 MB |
| Requires iOS | **9.3** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [DongGuan DESHIDE TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1718185095) | [Kamil Podlasek](https://appshunter.io/developer/1608091233) |

## What reviewers say

### DSD TECH Bluetooth

[App page](https://appshunter.io/ios/app/dsd-tech-bluetooth/id1441528159)

This utility app facilitates efficient communication with specific DSD TECH Bluetooth modules. It supports a range of relay and BLE modules, streamlining interactions and saving users time. Compatible with various DSD TECH Bluetooth devices.

**Highlights:** Efficient communication with Bluetooth modules, Supports DSD TECH Bluetooth Relay modules, Supports DSD TECH SH-HC-08, SH-M08, HM-10, SH-11 modules, Supports DSD TECH Bluetooth BLE modules, Saves user time

**Features:** macOS Compatibility

**In-app purchases:** none


### Chess Clock Blitz

[App page](https://appshunter.io/ios/app/chess-clock-blitz/id6774277034)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | per month |
| Premium | $29.99 | per year |


## Frequently asked questions

### Is DSD TECH Bluetooth free?

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

### Is Chess Clock Blitz free?

Chess Clock Blitz is free to download, with in-app purchases available.

### Do DSD TECH Bluetooth or Chess Clock Blitz have ads?

Neither DSD TECH Bluetooth nor Chess Clock Blitz shows ads.

### Which is updated more often, DSD TECH Bluetooth or Chess Clock Blitz?

DSD TECH Bluetooth ships an update every 2 months, and Chess Clock Blitz every 3 days. Most recently, DSD TECH Bluetooth was updated on September 29, 2026 and Chess Clock Blitz on September 30, 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.*