Comparison

Watch Sensor Logger vs Care Sensors

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

Head to head
About

Watch Sensor Logger

Log detailed motion and GPS data from your Apple Watch. Export sensor readings like acceleration, attitude, and location as a CSV file for analysis. This app is exclusively designed for Apple Watch.

Highlights
  • Log sensor data
  • GPS tracking
  • Export to CSV
  • Acceleration logging
  • Attitude data
  • Time stamping
Features
Read full description

Watch Sensor Logger turns your Apple Watch into a powerful motion and location logger. Record high-precision sensor data straight from your wrist: • Acceleration • Rotation Rate • Gravity • Attitude • GPS location Start a recording on your Apple Watch, then review your sessions on your iPhone. Every measurement is visualized with clear charts so you can spot patterns at a glance, and you can export any session as a CSV file for analysis in your favorite tools. Perfect for researchers, developers, athletes, and anyone curious about the motion of everyday life. KEY FEATURES • One-tap recording on Apple Watch • Motion sensors: acceleration, rotation rate, gravity, attitude • GPS location logging • Beautiful charts to explore your data • CSV export for spreadsheets and analysis • Manage and delete past sessions easily

About

Care Sensors

Features
Read full description

CareSensor turns your Apple Watch into a structured motion sensor recorder for research, machine learning, rehabilitation, and any study that needs labelled inertial sensor data from a wearable. DESIGNED FOR STRUCTURED DATA COLLECTION Every recording is tagged before it starts — participant, data category, sub-category, body side, and sampling rate. That metadata is embedded directly in the output filename so your dataset stays organized without any manual labelling after the fact. Fully customizable categories mean CareSensor fits any label schema. SENSOR RECORDING Record Device Motion (attitude, quaternion, rotation rate, user acceleration, gravity) and Raw Accelerometer simultaneously at 5–100 Hz. Choose from four CoreMotion reference frames. A 5-second countdown lets the subject get into position before sampling begins. LIVE SENSOR STREAMING Stream and visualise up to 2 sensor types in real time on both the Watch (5–30 Hz) and the iPhone. Verify signal quality before committing to a recording. FLEXIBLE FILE MANAGEMENT Files are saved on the Watch. Send them to your iPhone individually (swipe to send) or all at once with progress tracking. Preview any CSV or JSON file instantly with native QuickLook, then export a ZIP archive — organised by participant if needed — ready for MATLAB, Python, R, or any analysis toolchain. PARTICIPANT MANAGEMENT Manage participants, categories, and sub-categories on the iPhone and sync to the Watch with one tap. Default data includes 16 categories covering common rehabilitation exercises — or replace them with any classification structure you need. PRIVACY-FIRST All sensor data and participant information stays entirely on your devices. No data is sent to any server. No account required. No ads. REQUIREMENTS • Apple Watch Series 4 or later, watchOS 10.0+ • iPhone with iOS 17.0+ • Watch must be paired to the iPhone • Motion & Fitness permission on Watch

Screenshots

Watch Sensor Logger4 screens
Care Sensors4 screens

Verdict

The call

The clearest difference is ads: Care Sensors at none against Watch Sensor Logger's shown. On price, in-app purchases, device support and iOS requirement 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.

Scorecard1 real difference · 9 level
Watch Sensor Logger versus Care Sensors: the parameters behind the verdict, then further details
ParameterWatch Sensor LoggerCare Sensors
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 25 months—
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS17.017.0
Further details — not scored
Size17 MB3 MB
Age rating4+4+
Developeryuya kanbetsunawaMoez ur Rehman

In-app purchases

None

Watch Sensor Logger

No in-app purchases

None

Care Sensors

No in-app purchases

Questions

Is Watch Sensor Logger free?
Watch Sensor Logger is free to download, with no in-app purchases.
Is Care Sensors free?
Care Sensors is free to download, with no in-app purchases.
Do Watch Sensor Logger or Care Sensors have ads?
Watch Sensor Logger shows ads; Care Sensors does not.

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