Watch Sensor Logger vs Physics Labs
Price, ratings, monetisation and update history for both apps, side by side โ 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: โข Acceleration โข Rotation Rate โข Gravity โข Attitude โข 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 โข One-tap recording on Apple Watch โข Motion sensors: acceleration, rotation rate, gravity, attitude โข GPS location logging โข Beautiful charts to explore your data โข CSV export for spreadsheets and analysis โข Manage and delete past sessions easily
Physics Labs
This app uses your device's sensors to measure various physical quantities like acceleration, magnetic fields, and sound levels. View data in coordinates or scalar magnitude, and export it to Excel for analysis. It's a digital lab for your phone.
- Measure acceleration, magnetic fields, and sound levels
- View data in X, Y, Z coordinates or scalar magnitude
- Export sensor data to Excel for analysis
- Eliminate gravity from acceleration measurements
- Measure atmospheric pressure
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Physics Lab is all-in-one Sensor app which let you know physical entities around you like acceleration, magnetic fields, light intensity, sound decibel and much more... Physics Lab measures physical parameters by using your device sensors which typical device contain bunch of those sensors! Application give output in high precision with short intervals based on your sensor's capabilities. In Physics Lab, you can observe physical data in coordinates (X-axis, Y-axis, Z-axis) or in scalar magnitude. If you want, you can export sensor data into Excel by one click! Using export to excel feature you can obtain statistical information about your measurement. Physical quantities that can be measured Physics Lab: * Accelerometer: Measuring acceleration around your device. Output in m/s2 for x, y and z axes. Also, you can eliminate gravity from your measurements by one click and see real acceleration. * Magnetometer: Measuring magnetic field around your device. Output in ยตT for x, y and z axes. * Gyroscope: Measure angular inclination in x, y and z axes. Output in degree (ยฐ) * Luxmeter: COMING SOON * Barometer: Measure atmospheric pressure. Output in bar. * Noisemeter: Measure loudness around you. Output in dB. If you like our application, you can give us 5 stars. You can forward any suggestions, requests or concerns to info@grandmount.org
Screenshots
Verdict
The clearest difference is review sentiment: Physics Labs at 100% against Watch Sensor Logger's 50%. Physics Labs also leads on update cadence (every 2 weeks vs every 25 months) and iOS requirement (15.6 vs 17.0). Watch Sensor Logger's advantage is monetization model (free vs ad-supported). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Watch Sensor Logger ships an update every 25 months, Physics Labs every 2 weeks. The most recent releases landed on August 8, 2026 and June 9, 2026 respectively.
| Parameter | Watch Sensor Logger | Physics Labs |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | 100.0% of reviews โ better |
| Update frequency | Every 25 months | Every 2 weeks โ better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Free โ better | Ad-supported |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 15.6 โ better |
| Further details โ not scored | ||
| Size | 17 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | yuya kanbetsunawa | Huseyin Aykut Uludag |
Customer experience
Watch Sensor Logger
Physics Labs
In-app purchases
Watch Sensor Logger
No in-app purchases
Physics Labs
No in-app purchases
Questions
Is Watch Sensor Logger free?
Is Physics Labs free?
Do Watch Sensor Logger or Physics Labs have ads?
Which is updated more often, Watch Sensor Logger or Physics Labs?
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