Blue Switch vs BT
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.
BT
Control Bluetooth-enabled LED dimmers and switches directly from your smartphone. Adjust lighting settings with ease using this utility application.
- Control Bluetooth LED dimmers
- Control Bluetooth switches
- Adjust lighting settings
- Smartphone utility
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With BT-Switch app you can control Bluetooth led dimmers and switches.
Screenshots
Verdict
The clearest difference is rating: Blue Switch at 3.8 against BT's 1.0. Blue Switch also leads on ratings volume (43 vs 1) and review sentiment (17% vs 0%). BT'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. BT 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 BT's.
Blue Switch ships an update every 3 months, BT every 5 months. The most recent releases landed on September 23, 2026 and October 8, 2026 respectively.
| Parameter | Blue Switch | BT |
|---|---|---|
| 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 — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 8.1 — better |
| Further details — not scored | ||
| Size | 39 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Vitalij Schaefer | Electromen Oy |
Customer experience
Blue Switch
BT
In-app purchases
Blue Switch
- Remove Ads$17.99
BT
No in-app purchases
