Watch Sensor Logger vs Care Sensors
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Log sensor data
- GPS tracking
- Export to CSV
- Acceleration logging
- Attitude data
- Time stamping
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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
Care Sensors
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Watch Sensor Logger | Care Sensors |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 25 months | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 17 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | yuya kanbetsunawa | Moez ur Rehman |
In-app purchases
Watch Sensor Logger
No in-app purchases
Care Sensors
No in-app purchases
Questions
Is Watch Sensor Logger free?
Is Care Sensors free?
Do Watch Sensor Logger or Care Sensors have ads?
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