Play BLUno vs Blue Switch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Play BLUno
This app facilitates demonstrations and tests with a Bluno controller board using Bluetooth Low Energy. It allows users to easily control and interact with various functions of Arduino-based BLE hardware directly from their phone, offering a new way to learn and play with electronics.
- BLE communication with Bluno controller
- Control electronic devices
- Display real-time sensor data
- Open Source Hardware based
- DIY and prototyping tool
- Educational for electronics
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Play Bluno is an app that provides extreme ease for DIYers,Arduino enthusiasts,and home automation zealots to do demonsrations and tests with Bluno controller board via BLE(Blutooth Low Energy) communication. Specially designed for the Arduino-based BLE hardwares, users can easily learn to control and interact with a variety of functions with their phone. For example, displaying real-time temperature and humidity data on the phone,switching lights on/off or stimulating a full-color L_E_D light. It offers you a new way to learn and play with electronic devices via BLE communication. Based on the Arduino hardware platform, it's quite easy for you to build a network and test your own system based on BLE. Play Bluno is first of its kind to solve the problem of communication between hardwares via BLE and is designed to change this situation. The user interface of Play Bluno is quite clear and straightforward. The 7 areas are designed in correspondence with 7 key functions of the Accessory board,including an L_E_D LCD, a buzzer, a temperature and humidity sensor, a five-way button, a relay module, a full-color L_E_D and a knob. Once opened, the user can see directly the different key functions displayed in one screen. After establishing BLE connection, the user will be able to tweek and controll these functions on the Accessory board simoutaneously on the phone. The Play Bluno and the related hardware design are completely based on the Open Source Hardware concepts. There is documentation and support for this modules. The designs, schematics and codes will be Open Source. Play Bluno will be also a good start for you in tackling hardware installations such as wearables. So for developers now that you have the software and the hardware, it's time to start creating your own things with Play Bluno, and make it whatever you like. Functions and Advantages DIY and Prototyping Educational Switchs for controlling the electronic devices and other functions Based on Arduino opensource hardware platform. Recommended to be used with BLUno board and Accessory board.
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.
Screenshots
Verdict
The clearest difference is rating: Blue Switch at 3.8 against Play BLUno's 1.0. Blue Switch also leads on ratings volume (43 vs 1) and review sentiment (17% vs 0%). Play BLUno'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. Play BLUno 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: 0% of Play BLUno's written reviews are positive against 17% of Blue Switch's.
Play BLUno ships an update every 2 months, Blue Switch every 3 months. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.
| Parameter | Play BLUno | Blue Switch |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 3.8 (43 ratings) — better |
| Positive reviews | 0.0% of reviews | 16.7% of reviews — better |
| Number of ratings | 1 | 43 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 7.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 3 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Shanghai Zhiwei Robotics Co Ltd | Vitalij Schaefer |
Customer experience
Play BLUno
Blue Switch
In-app purchases
Play BLUno
No in-app purchases
Blue Switch
- Remove Ads$17.99









