Comparison

ST BLE Sensor Classic vs ETracking Expense

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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

About

ETracking Expense

Features
Read full description

ETracking Expense is your AI-powered expense tracker: log and manage your personal finances just by chatting — no forms, no friction. LOG EXPENSES BY CHAT Type something like "Taxi to airport 35" or "Coffee 5 and lunch 12.50" and the AI understands, categorizes, and records it automatically — even multiple expenses in one message, or relative dates like "Gas 40 yesterday." Just ask "How much did I spend this week?" for instant answers. 4 AI RESPONSE STYLES Choose how your AI assistant talks to you: • Serious – professional, analytical feedback • Balanced – friendly, encouraging guidance • Funny – humorous, playful responses • Mindful – calm, thoughtful reflections to help you spend more consciously SMART REPORTS & INSIGHTS See weekly and monthly reports with AI-generated commentary, category breakdowns, and spending pace projections. CATEGORIES & BUDGETS Automatic expense categorization (food, transport, shopping, healthcare...) with real-time budget tracking. CLOUD-SYNCED Your expenses are securely stored in the cloud and available across all your devices — just sign in to pick up right where you left off. MULTI-LANGUAGE Available in English, Tiếng Việt, and Español — use whichever language feels natural. Start chatting with your AI assistant today and turn expense tracking into an easy, even enjoyable, habit.

Screenshots

ST BLE Sensor Classic4 screens
ETracking Expense4 screens

Verdict

The call

The clearest difference is update cadence: ETracking Expense at every 3 weeks against ST BLE Sensor Classic's every 6 months. 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

ST BLE Sensor Classic ships an update every 6 months, ETracking Expense every 3 weeks. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 8 level
ST BLE Sensor Classic versus ETracking Expense: the parameters behind the verdict, then further details
ParameterST BLE Sensor ClassicETracking Expense
PriceFreeFree
Rating2.3 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size71 MB21 MB
Age rating4+4+
DeveloperSTMicroelectronicsvinh pham

In-app purchases

None

ST BLE Sensor Classic

No in-app purchases

None

ETracking Expense

No in-app purchases

Questions

Is ST BLE Sensor Classic free?
ST BLE Sensor Classic is free to download, with no in-app purchases.
Is ETracking Expense free?
ETracking Expense is free to download, with no in-app purchases.
Do ST BLE Sensor Classic or ETracking Expense have ads?
Neither ST BLE Sensor Classic nor ETracking Expense shows ads.
Which is updated more often, ST BLE Sensor Classic or ETracking Expense?
ST BLE Sensor Classic ships an update every 6 months, and ETracking Expense every 3 weeks. Most recently, ST BLE Sensor Classic was updated on October 4, 2026 and ETracking Expense on October 9, 2026.

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