Care Sensors vs Sensor
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
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 ā 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 5ā100 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 (5ā30 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 ā organised by participant if needed ā 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 ā 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
Sensor
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SensorStream turns your iPhone and Apple Watch into real-time motion sensor tools. Select a device, choose the sensor streams you need, and view smooth live graphs with sampling- rate information. Record sessions locally and export the captured data as CSV files for analysis, research, testing, or development. Features include: ⢠iPhone and Apple Watch sensor streaming ⢠Accelerometer and gyroscope data ⢠Gravity and magnetic-field measurements ⢠Pitch, roll, yaw, quaternions, and rotation matrices ⢠Live sampling-rate display ⢠Selectable sensor channels ⢠Smooth, full-width graphs ⢠Local recording with pause and resume controls ⢠CSV file sharing and deletion ⢠Light and dark appearance support Available streams depend on the selected device and its hardware capabilities. SensorStream excludes HealthKit-dependent biometric data.
Screenshots
Verdict
Care Sensors and Sensor are too close to call on the numbers: across 5 compared parameters ā price, ads, in-app purchases and device support among them ā neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Care Sensors | Sensor |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Requires iOS | 17.0 ā better | 18.0 |
| Further details ā not scored | ||
| Size | 3 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Moez ur Rehman | Yerim Lab LLC |
In-app purchases
Care Sensors
No in-app purchases
Sensor
No in-app purchases









