# Play BLUno vs RidgeRelay

The clearest difference is rating: RidgeRelay at 5.0 against Play BLUno's 1.0. Play BLUno's advantage is iOS requirement (7.0 vs 17.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RidgeRelay holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Play BLUno ships an update every 2 months, RidgeRelay every 3 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Play BLUno | RidgeRelay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/play-bluno/id737793451/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ridgerelay/id6467876360/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 3 MB | 1 MB |
| Requires iOS | **7.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Zhiwei Robotics Co Ltd](https://appshunter.io/developer/643548685) | [SWITCHED KINETIC IDEAS LLC](https://appshunter.io/developer/1709310563) |

## 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


### RidgeRelay

[App page](https://appshunter.io/ios/app/ridgerelay/id6467876360)

Control up to six relay outputs directly from your iPhone. Personalize relay names, icons, and colors. Monitor live hardware status via Bluetooth connection.

**Highlights:** Control six relay outputs, Customize relay names, Personalize icons and colors, View live hardware status, Bluetooth connectivity

**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 RidgeRelay free?

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

### Which has better reviews, Play BLUno or RidgeRelay?

RidgeRelay is rated higher. Play BLUno averages 1.0 out of 5 from 1 ratings, while RidgeRelay averages 5.0 from 1 ratings.

### Do Play BLUno or RidgeRelay have ads?

Neither Play BLUno nor RidgeRelay shows ads.

### Which is updated more often, Play BLUno or RidgeRelay?

Play BLUno ships an update every 2 months, and RidgeRelay every 3 months. Most recently, Play BLUno was updated on October 22, 2026 and RidgeRelay on October 24, 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.*