Comparison

Play BLUno vs Blue Switch

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • BLE communication with Bluno controller
  • Control electronic devices
  • Display real-time sensor data
  • Open Source Hardware based
  • DIY and prototyping tool
  • Educational for electronics
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

Play BLUno3 screens
Blue Switch4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Blue Switch sells 1 one-off in-app purchase. Play BLUno asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Play BLUno versus Blue Switch: the parameters behind the verdict, then further details
ParameterPlay BLUnoBlue Switch
PriceFreeFree
Rating1.0 (1 ratings)3.8 (43 ratings) — better
Positive reviews0.0% of reviews16.7% of reviews — better
Number of ratings143 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS7.0 — better18.0
Further details — not scored
Size3 MB39 MB
Age rating4+4+
DeveloperShanghai Zhiwei Robotics Co LtdVitalij Schaefer

Customer experience

Play BLUno

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Blue Switch

All ratings43 ratings
Positive69.8%
Neutral2.3%
Negative27.9%
Written reviews6 reviews
Positive16.7%
Neutral16.7%
Negative66.7%

In-app purchases

None

Play BLUno

No in-app purchases

1 purchases

Blue Switch

One-time1
  • Remove Ads$17.99

Questions

Is Play BLUno free?
Play BLUno is free to download, with no in-app purchases.
Is Blue Switch free?
Blue Switch is free to download, with in-app purchases available.
Which has better reviews, Play BLUno or Blue Switch?
Blue Switch is rated higher. Play BLUno averages 1.0 out of 5 from 1 ratings, while Blue Switch averages 3.8 from 43 ratings.
Do Play BLUno or Blue Switch have ads?
Blue Switch shows ads; Play BLUno does not.
Which is updated more often, Play BLUno or Blue Switch?
Play BLUno ships an update every 2 months, and Blue Switch every 3 months. Most recently, Play BLUno was updated on October 5, 2026 and Blue Switch on October 10, 2026.

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