ST BLE Sensor vs Closer Security
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ST BLE Sensor
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.
- Access sensor data
- Log data to cloud
- Update board firmware
- Explore demo functionalities
- Bluetooth Low Energy communication
- Motion-sensor data fusion
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The ST BLE Sensor 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. 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
Closer Security
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Protect Your Child with CLOSER SECURITY SOS Bracelet One-Touch SOS: When your child feels unsafe, one press of the bracelet sends their location straight to your phone. Quick, simple, effective. 10-Second Voice Message: Alongside the location, a 10-second voice recording is dispatched, giving you a clear idea of your child's situation. Hear their voice when it matters most! Easy to Use: No tech-savvy needed! Simple setup for both parents and kids. The bracelet is comfortable for all-day wear, and the app interface is intuitive. Secure Data: We prioritize your family's privacy with robust encryption. Only you are notified in emergencies, keeping personal details safe. Instant Alerts: Receive logs immediately upon an SOS activation. Never miss a crucial moment. Mute & Unmute Mode: To prevent accidental alerts, we've added a mute/unmute feature. Now, you can control when the bracelet can send an SOS, reducing false alarms caused by fidgeting kids
Screenshots
Verdict
The clearest difference is update cadence: Closer Security at every 2 weeks against ST BLE Sensor's every 2 months. Closer Security also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
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.
ST BLE Sensor ships an update every 2 months, Closer Security every 2 weeks. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.
| Parameter | ST BLE Sensor | Closer Security |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (10 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 55 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | STMicroelectronics | You Steed |
In-app purchases
ST BLE Sensor
No in-app purchases
Closer Security
No in-app purchases
Questions
Is ST BLE Sensor free?
Is Closer Security free?
Do ST BLE Sensor or Closer Security have ads?
Which is updated more often, ST BLE Sensor or Closer Security?
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