DX vs Bluetooth V2.1 SPP Setup
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DX
This utility app facilitates wireless control and data transmission for smart products via Bluetooth. It allows for device scanning, connection, information reading, and data read/write operations. Users can also filter scanned devices by name and signal strength.
- Device scanning
- Device connection
- Device information reading
- Data read and write
- Filter devices by name and RSSI
- Wireless control
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DX-smartDX-smart Bluetooth debugging assistant is an APP specially created by Shenzhen Daxia Longque Technology Co., Ltd. for intelligent wireless control. This APP can be connected with our bluetooth module and transmit data, and can also control our smart products and solutions. Wireless products can be verified extremely fast. function list: 1.Device scanning 2.Device connection 3.Device information reading 4.Data read and write 5.Filter scanned devices by name and RSSI level 6.Preset function - stay tuned
Bluetooth V2.1 SPP Setup
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The iOS portable devices will connect with the Bluetooth Low Energy (BLE) to serial port converter devices and exchange data with them bi-directional. The serial port includes RS-232 or RS-422 RS-485 interfaces. The user will test the APP with the SCADA, Robot, UAV, PLC, CNC or etc. with the BLE to serial port devices. The APP will be customized to meet the specific applications.
Screenshots
Verdict
The clearest difference is update cadence: Bluetooth V2.1 SPP Setup at every 2 weeks against DX's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DX ships an update every 3 months, Bluetooth V2.1 SPP Setup every 2 weeks. The most recent releases landed on July 8, 2026 and September 18, 2026 respectively.
| Parameter | DX | Bluetooth V2.1 SPP Setup |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 9 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | 官志 周 | FUH CHERNG SHEU |
In-app purchases
DX
No in-app purchases
Bluetooth V2.1 SPP Setup
No in-app purchases
Questions
Is DX free?
Is Bluetooth V2.1 SPP Setup free?
Do DX or Bluetooth V2.1 SPP Setup have ads?
Which is updated more often, DX or Bluetooth V2.1 SPP Setup?
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