# u vs ST BLE Sensor

The clearest difference is review sentiment: u at 50% against ST BLE Sensor's 0%. u also leads on rating (4.3 vs 2.0) and iOS requirement (10.0 vs 15.0). ST BLE Sensor's advantage is update cadence (every 2 months vs every 9 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

u holds the better App Store score, 4.3 against 2.0. Both are backed by a comparable volume of ratings — 4 and 10 respectively. Written reviews point the same way: 50% of u's written reviews are positive against 0% of ST BLE Sensor's.

u ships an update every 9 months, ST BLE Sensor every 2 months. The most recent releases landed on October 26, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | u | ST BLE Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/u-blox-ble/id575523395/reviews)** | [2.0 (10 ratings)](https://appshunter.io/ios/app/st-ble-sensor/id993670214/reviews) |
| Number of ratings | 4 | **10** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 24 MB | 55 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [u-blox Malmo AB](https://appshunter.io/developer/575523398) | [STMicroelectronics](https://appshunter.io/developer/1801774735) |

## What reviewers say

### u

[App page](https://appshunter.io/ios/app/u-blox-ble/id575523395)

This application enables developers to test and evaluate Bluetooth low energy modules from u-blox. It provides a platform for understanding the capabilities of these modules.

**Highlights:** Evaluate Bluetooth low energy modules, Standalone module testing, Developer tool, Module capability assessment

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

**In-app purchases:** none


### ST BLE Sensor

[App page](https://appshunter.io/ios/app/st-ble-sensor/id993670214)

This app connects to ST development boards via Bluetooth Low Energy to access sensor data. You can log data to cloud providers, update board firmware, and explore various demo functionalities like environmental sensing and machine learning.

**Highlights:** Access sensor data, Log data to cloud, Update board firmware, Explore demo functionalities, Bluetooth Low Energy communication, Motion-sensor data fusion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is u free?

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

### Is ST BLE Sensor free?

ST BLE Sensor is free to download, with no in-app purchases.

### Which has better reviews, u or ST BLE Sensor?

u is rated higher. u averages 4.3 out of 5 from 4 ratings, while ST BLE Sensor averages 2.0 from 10 ratings.

### Do u or ST BLE Sensor have ads?

Neither u nor ST BLE Sensor shows ads.

### Which is updated more often, u or ST BLE Sensor?

u ships an update every 9 months, and ST BLE Sensor every 2 months. Most recently, u was updated on October 26, 2026 and ST BLE Sensor on October 15, 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.*