Comparison

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.

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: โ€ข Acceleration โ€ข Rotation Rate โ€ข Gravity โ€ข Attitude โ€ข 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 โ€ข One-tap recording on Apple Watch โ€ข Motion sensors: acceleration, rotation rate, gravity, attitude โ€ข GPS location logging โ€ข Beautiful charts to explore your data โ€ข CSV export for spreadsheets and analysis โ€ข Manage and delete past sessions easily

About

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.

Highlights
  • 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
Features
Read full description

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

Watch Sensor Logger4 screens
Physics Labs4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

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.

Scorecard4 real differences ยท 4 level
Watch Sensor Logger versus Physics Labs: the parameters behind the verdict, then further details
ParameterWatch Sensor LoggerPhysics Labs
PriceFreeFree
Positive reviews50.0% of reviews100.0% of reviews โ€” better
Update frequencyEvery 25 monthsEvery 2 weeks โ€” better
AdsYesYes
In-app purchasesNoNo
MonetizationFree โ€” betterAd-supported
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.015.6 โ€” better
Further details โ€” not scored
Size17 MB32 MB
Age rating4+4+
Developeryuya kanbetsunawaHuseyin Aykut Uludag

Customer experience

Watch Sensor Logger

Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Physics Labs

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Watch Sensor Logger

No in-app purchases

None

Physics Labs

No in-app purchases

Questions

Is Watch Sensor Logger free?
Watch Sensor Logger is free to download, with no in-app purchases.
Is Physics Labs free?
Physics Labs is free to download, with no in-app purchases.
Do Watch Sensor Logger or Physics Labs have ads?
Both Watch Sensor Logger and Physics Labs show ads.
Which is updated more often, Watch Sensor Logger or Physics Labs?
Watch Sensor Logger ships an update every 25 months, and Physics Labs every 2 weeks. Most recently, Watch Sensor Logger was updated on August 8, 2026 and Physics Labs on June 9, 2026.

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