Physics Toolbox Sensor Suite P

873 reviews
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About this app

This app uses internal smartphone sensors to collect, display, record, and export .csv data files. See to (1) read about case usage in research and development, and (2) get lesson plans for educators of science, technology, engineering, and mathematics (STEM) fields, including physics. Sensor availability, precision, and accuracy are dependent upon smartphone hardware.

Sensors, generators, and data analysis tools include the following:

G-Force Meter - ratio of Fn/Fg (x, y, z and/or total)
Linear Accelerometer – acceleration (x, y, and/or z)
Gyroscope - radial velocity (x, y, and/or z)
Inclinometer - azimuth, roll, pitch
Protractor - angle from vertical or horizontal

Sound Meter - sound intensity
Tone Detector - frequency and musical tone
Tone Generator – sound frequency producer
Oscilloscope - wave shape and relative amplitude
Spectrum Analyzer - graphical FFT
Spectrogram - waterfall FFT

Light Meter - light intensity
Color Detector - detects HEX colors within a small rectangle area on the screen via the camera.
Color Generator – R/G/B/Y/C/M, white, and custom color screen
Proximeter - periodic motion and timer (timer and pendulum modes)
Stroboscope (beta) - camera flash
Wi-Fi - Wi-Fi signal strength

Compass - magnetic field direction and bubble level
Magnetometer - magnetic field intensity (x, y, z and/or total)
Magna-AR - augmented reality visualization of magnetic field vectors

Barometer - atmospheric pressure
Ruler - distance between two points
GPS - latitude, longitude, altitude, speed, direction, number of satellites
System Temperature - battery temperature

Multi Record - choose one or more of the above sensors to collect data at the same time.
Dual Sensor - display data from two sensors on a graph in real time.
Roller Coaster - G-Force Meter, Linear Accelerometer, Gyroscope, and Barometer

Manual Data Plot - enter data manually to generate a graph.

Play - challenges

(a) Record: Record by pressing the red floating action button. Find saved data stored in the folder icon.
(b) Export: Export data by selecting an option to send via e-mail or shared in Google Drive or Dropbox. Locally saved files can also be transferred from the folder icon.
(c) Sensor Information: Clicking on the (i) icon to identify sensor name, vendor, and current data collection rate, and to learn what kind of data is collected by the sensor, its physical operating principle, and links to additional resources.

* Note that not all settings are available for all sensors.
(a) Data Display: View data in graphical, digital, or vector form.
(b) Graph Display: View multi-dimensional data sets on a single shared graph or in multiple individual graphs.
(c) Displayed Axis: For multi-dimensional data on a single shared graph, select total, x, y, and/or z-axis data.
(d) CSV Timestamp Format: Record clock time or elapsed time with sensor data.
(e) Line Width: Modify visual presentation of data with a Thin, Medium, or Thick line.
(f) Sensor Collection Rate: Set collection rate as Fastest, Game, UI, or Normal. The sensor collection rate is displayed for each option when selected.
(g) Keep the Screen On: Prevent the app from turning the screen off automatically.
(h) Calibrate: Calibrate selected sensors.
Updated on
Jan 22, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App info and performance
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

852 reviews
Stefan Hudson
January 14, 2021
Terrific app, gives access to the raw data coming from all of the sensors. I last used it to detect the magnetic field fluctuations produced by a water meter while troubleshooting a Flume sensor - it produced an impressively clean signal. Some suggestions for the developers: 1) Make it more obvious when data is being recorded, like change the color of the record button or screen border (i.e., only red while actually recording). I lost some data a couple times because I thought it was recording when it wasn't - it can be tricky see the screen in detail when collecting data sometimes. 2) When the app is re-opened, go back to the same sensor it was in previously. 3) Make an easy way to generate an FFT of data recorded from any channel - for the water meter, it would have been nice to be able to get a read of the frequency of the magnetometer data. This could also be useful as a tachometer for motors, etc.
22 people found this review helpful
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Vieyra Software
January 15, 2021
Thank you for the feedback. We have been curious to try to measure the magnetic field changes of the water meter too! We really appreciate your three points of feedback. We are sorry to hear you lost some data as the UI was not clear enough for you to know that data was not being recorded. Feel free to write to us at
A Google user
March 4, 2019
This app is an easy and effective way to transform the sensors in your phone into a versatile tool set. I used the magnetometer, for example, during my doctoral research at Penn State to map out the geomagnetic field of our vacuum chamber. I used the accelerometer while teaching to measure vibrations during structural tests of students' designs. At NASA, I've used the audio spectrogram to identify faulty pumps. And for personal use, I've used the audio spectrogram to identify birds in my backyard and the tone generator to tune my instruments. And, this app is essential for the curios who just wants to know more about the physical world around him or her. The graphical interface is not pleasing and sometimes confusing, but the app is very stable and reliable. Vieyra team is very response to emails, and gladly takes feature requests. EDIT: typos
20 people found this review helpful
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Vieyra Software
March 7, 2019
Thank you very much for the feedback.
John Russell
August 26, 2020
Great app! I especially like the sound spectrogram for visualizing bird calls. Sometimes it "shows" me calls that I didn't hear before I knew what to listen for. A feature I'd like to see is (instead of all red) a color spectral presentation of the spectrogram that repeats by octave. That would help identify overtones, especially with musical instruments. Also it would be good if the app always opened in the sensor I was using when I closed it.
9 people found this review helpful
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Vieyra Software
August 27, 2020
Thank you for the review. We are glad to know you found our acoustics tools useful. Thank you for the feedback regarding the spectrogram, we will definitively look into implementing your enhancement suggestion.

What's new

Added support for Android 13