Blue Switch vs DX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blue Switch
Control 2, 4, or 8 channel Bluetooth BLE relay modules from your iPhone or iPad. Assign custom names to modules and individual relays for easy identification and management. Enhance security by changing the default password.
- Control 2, 4, or 8 channel relay modules
- Bluetooth BLE connectivity
- Assign custom module aliases
- Assign custom relay aliases
- Change default password for security
- Connect to multiple modules
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This app allows you to control a 2, 4 or 8 Channel Relay Module Bluetooth BLE with your iPhone or iPad. To use this app, you need one of these three modules: "2 Channel Relay Module Bluetooth BLE" "4 Channel Relay Module Bluetooth BLE" "8 Channel Relay Module Bluetooth BLE" These modules can be ordered at many online shops. Please use a search engine to find a shop. This app can be connected with any number of modules. By entering an alias, the modules are marked clearly and can easily be assigned to a use area. Name the modules for example "Relay 1", "Relay 2", "Electronic lab project" or "Ambient Light". An alias can also be entered for each relay. The default password for these modules is usually "12345678". For more security, the app also allows you to change the password. The password must be eight digits long.
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
Screenshots
Verdict
The clearest difference is rating: Blue Switch at 3.8 against DX's 1.0. Blue Switch also leads on ratings volume (43 vs 1) and review sentiment (17% vs 0%). DX's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence 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. Blue Switch sells 1 one-off in-app purchase. DX asks for nothing beyond the download.
Blue Switch holds the better App Store score, 3.8 against 1.0. That said, the two scores are not equally well evidenced: Blue Switch has 43 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 17% of Blue Switch's written reviews are positive against 0% of DX's.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 23, 2026 and September 29, 2026 respectively.
| Parameter | Blue Switch | DX |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (43 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 16.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 43 — better | 1 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Vitalij Schaefer | 官志 周 |
Customer experience
Blue Switch
DX
In-app purchases
Blue Switch
- Remove Ads$17.99
DX
No in-app purchases
