ST BLE Sensor vs SolarMark
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
SolarMark
Monitor your solar power generation and battery storage systems locally and privately. Visualize real-time energy flow, get intelligent predictions, and receive protection alerts without relying on cloud services.
- Direct Modbus TCP polling
- Live power flow dashboard
- Multi-device infrastructure management
- Localized weather-based generation predictions
- On-device analytics ledger
- Open data export (CSV)
- Protection alerts (no-generation, performance, thermal)
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Take complete local control of your green energy infrastructure with SolarMark—the ultimate privacy-focused telemetry engine designed explicitly for solar power generation and battery storage systems. Unlike standard cloud platforms that lock your history behind proprietary servers, SolarMark establishes a direct, secure line to your hardware using local Modbus TCP polling. No third-party accounts, no remote data centers, and zero internet tracking dependencies required. REAL-TIME ECOSYSTEM MONITORING • Direct Modbus TCP Polling: Pull telemetry straight from your inverters and battery systems every 5 seconds. • Live Power Flow Dashboard: Instantly visualize generation metrics, grid imports, grid exports, and real-time utility currency valuation flows. • Multi-Device Infrastructure: Seamlessly configure and manage multiple independent inverters and standalone battery installations. INTELLIGENT PREDICTIONS & ANALYTICS • Localized Weather Gating: Synchronize system coordinates with local Open-Meteo irradiance data to generate automated daily generation predictions. • SQLite Analytics Ledger: Securely store lifetime energy metrics, battery state-of-charge curves, performance tracking, and voltage anomalies directly on your device. • Open Data Freedom: Extract energy histories and localized telemetry logs at any time using filtered, uncompressed CSV schema layers. SELF-CALIBRATING PROTECTION ALERTS • No-Generation Alarms: Receive automated system warnings if your hardware fails to initialize or generate power during standard daylight profiles. • Performance Threshold Vetting: SolarMark dynamically maps 30 days of production data to calibrate and alert you if real-time sunlight conversion loops drop below 40% efficiency. • Battery Thermal Shielding: Three independent detection layers monitor and instantly alert you of uncharacteristic voltage shifts or active thermal volatility spikes. FINANCIAL & ENVIRONMENTAL CLEARANCE • Track absolute localized financial tracking metrics with an integrated multi-currency picker (£ $ € ¥ A$ C$). • Toggle your sustainability output dashboards dynamically between metric tons of CO₂ offset or real-time equivalent trees planted. Keep your home data inside your local network. Secure your infrastructure, maximize your grid efficiency index, and download SolarMark today!
Screenshots
Verdict
The clearest difference is review sentiment: SolarMark at 100% against ST BLE Sensor's 0%. SolarMark also leads on rating (5.0 vs 2.0). ST BLE Sensor's advantage is ratings volume (10 vs 1). On price, update cadence, ads and in-app purchases 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.
SolarMark holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: ST BLE Sensor has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of ST BLE Sensor's written reviews are positive against 100% of SolarMark's.
ST BLE Sensor ships an update every 2 months, SolarMark monthly. The most recent releases landed on June 19, 2026 and September 4, 2026 respectively.
| Parameter | ST BLE Sensor | SolarMark |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (10 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 10 — better | 1 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 55 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | STMicroelectronics International N.V. | SolarMark Software LLC |
Customer experience
ST BLE Sensor
SolarMark
In-app purchases
ST BLE Sensor
No in-app purchases
SolarMark
No in-app purchases









