Play BLUno vs RealTech Passkey
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.
RealTech Passkey
Generate authentication codes for secure online account access. Easily add accounts by scanning QR codes and store security keys. Advanced encryption protects your personal data.
- OTP generation
- QR code scanning for account setup
- Security key storage
- Advanced encryption
- Quick authentication code generation
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RealTech Passkey is an OTP generator app that helps you log into all your online accounts. Scan QR codes to add accounts, store security keys, and generate authentication codes quickly. Protect personal data with advanced encryption technology.
Screenshots
Verdict
The clearest difference is review sentiment: RealTech Passkey at 100% against Play BLUno's 0%. RealTech Passkey also leads on update cadence (every 8 days vs every 2 months). Play BLUno's advantage is iOS requirement (7.0 vs 15.6). On price, ads, in-app purchases and monetization model 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.
Play BLUno ships an update every 2 months, RealTech Passkey every 8 days. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.
| Parameter | Play BLUno | RealTech Passkey |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 3 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Shanghai Zhiwei Robotics Co Ltd | NEXT GENERATION NETWORK |
Customer experience
Play BLUno
RealTech Passkey
In-app purchases
Play BLUno
No in-app purchases
RealTech Passkey
No in-app purchases
Questions
Is Play BLUno free?
Is RealTech Passkey free?
Do Play BLUno or RealTech Passkey have ads?
Which is updated more often, Play BLUno or RealTech Passkey?
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