# Play BLUno vs RealTech Passkey

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.

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.

## The numbers

| Metric | Play BLUno | RealTech Passkey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/play-bluno/id737793451/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free | Free |
| Size | 3 MB | 39 MB |
| Requires iOS | **7.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Zhiwei Robotics Co Ltd](https://appshunter.io/developer/643548685) | [NEXT GENERATION NETWORK](https://appshunter.io/developer/1550545686) |

## What reviewers say

### Play BLUno

[App page](https://appshunter.io/ios/app/play-bluno/id737793451)

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:** macOS Compatibility

**In-app purchases:** none


### RealTech Passkey

[App page](https://appshunter.io/ios/app/realtech-passkey/id6743424434)

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.

**Highlights:** OTP generation, QR code scanning for account setup, Security key storage, Advanced encryption, Quick authentication code generation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Play BLUno free?

Play BLUno is free to download, with no in-app purchases.

### Is RealTech Passkey free?

RealTech Passkey is free to download, with no in-app purchases.

### Do Play BLUno or RealTech Passkey have ads?

Neither Play BLUno nor RealTech Passkey shows ads.

### Which is updated more often, Play BLUno or RealTech Passkey?

Play BLUno ships an update every 2 months, and RealTech Passkey every 8 days. Most recently, Play BLUno was updated on November 6, 2026 and RealTech Passkey on November 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*