# nRF Blinky vs ST BLE Sensor Classic

nRF Blinky and ST BLE Sensor Classic are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

nRF Blinky ships an update every 9 months, ST BLE Sensor Classic every 6 months. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | nRF Blinky | ST BLE Sensor Classic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/st-ble-sensor-classic/id6447749695/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 6 months** |
| Monetization | — | Free |
| Size | 10 MB | 71 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nordic Semiconductor ASA](https://appshunter.io/developer/497679114) | [STMicroelectronics](https://appshunter.io/developer/1801774735) |

## What reviewers say

### nRF Blinky

[App page](https://appshunter.io/ios/app/nrf-blinky/id1325014347)

**In-app purchases:** none


### ST BLE Sensor Classic

[App page](https://appshunter.io/ios/app/st-ble-sensor-classic/id6447749695)

This app connects to ST development boards via Bluetooth Low Energy to access sensor data. It allows logging data to cloud providers and updating board firmware directly from your mobile device.

**Highlights:** Access sensor data, Log data to cloud providers, Update board firmware, Discover board functionalities, Supports motion-sensor data fusion, Activity recognition, Pedometer functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is nRF Blinky free?

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

### Is ST BLE Sensor Classic free?

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

### Do nRF Blinky or ST BLE Sensor Classic have ads?

Neither nRF Blinky nor ST BLE Sensor Classic shows ads.

### Which is updated more often, nRF Blinky or ST BLE Sensor Classic?

nRF Blinky ships an update every 9 months, and ST BLE Sensor Classic every 6 months. Most recently, nRF Blinky was updated on September 20, 2026 and ST BLE Sensor Classic on September 17, 2026.

---

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