nRF Blinky vs ST BLE Sensor Classic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
nRF Blinky
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nRF Blinky is an application targeted towards developers who are new to Bluetooth Low Energy. nRF Blinky has the following features: - Scan and connect to any nRF5 DK containing the Nordic Semiconductor’s proprietary LED/Button Service. - Toggle the LED on the development kit On and Off from within the application. - Receive Button press and release events from the development kit and display it within the application. This application is open sourced and the is written in Swift 5 and available on GitHub: https://github.com/NordicSemiconductor/IOS-CoreBluetooth-Mock
ST BLE Sensor Classic
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.
- Access sensor data
- Log data to cloud providers
- Update board firmware
- Discover board functionalities
- Supports motion-sensor data fusion
- Activity recognition
- Pedometer functionality
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The ST BLE Sensor Classic application is used in conjunction with an ST development board and firmware compatible with the BlueST protocol to give you access to all the sensor data, which you can log to different cloud providers, and to update the board firmware directly from a mobile device via the Bluetooth® Low Energy protocol. After discovery ST development board, the app shows you a list of available demos and you can navigate through them to discover the functionalities of your board. Demos can be related about environmental, cloud, audio, board configuration, machine learning and and many other functionalities. Cloud side, ST BLE Sensor can communicate with Microsoft Azure IoT Central, Aws IoT and ST Asset Tracking dashboard. The application is built on top of the BlueST SDK library implementing the BlueST protocol and helps you export the data easily via Bluetooth® Low Energy. The application also supports firmware library algorithms like motion-sensor data fusion, activity recognition and pedometer functionality. Both SDK and application source code are freely available at: https://github.com/STMicroelectronics
Screenshots
Verdict
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.
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.
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.
| Parameter | nRF Blinky | ST BLE Sensor Classic |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.3 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 9 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 10 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Nordic Semiconductor ASA | STMicroelectronics |
In-app purchases
nRF Blinky
No in-app purchases
ST BLE Sensor Classic
No in-app purchases
Questions
Is nRF Blinky free?
Is ST BLE Sensor Classic free?
Do nRF Blinky or ST BLE Sensor Classic have ads?
Which is updated more often, nRF Blinky or ST BLE Sensor Classic?
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