phyphox

Name: phyphox
Author: RWTH Aachen University

1.2.1

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RWTH Aachen University

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Perform physics experiments with your phone. (by the RWTH Aachen University)

phyphox: phone sensor experiments and data export

By Hafiz Rahman

Editor, tools and utilities

Ready-made experiments that start with one tap
Readings from accelerometer, magnetometer, GPS and LiDAR
Export raw data and results as CSV, TSV or Excel
Control a running experiment from a PC browser on the same network
Build your own experiments in a web editor at phyphox.org
Fourier transforms and cross-correlation in the analysis toolbox

What the phyphox app measures and who uses it

phyphox reads the sensors built into an Android phone and presents them as physics measurements. The listing's examples include using the phone as a pendulum to estimate local gravitational acceleration, and using its sound input as a sonar. It is aimed at students, teachers and anyone who wants to test physics with a phone.

The app was developed at the 2nd Institute of Physics A at RWTH Aachen University. It works with a set of named sensors, listed below, though not every phone has all of them.

Running ready-made physics experiments

A selection of pre-defined experiments is included. Each one is opened and started from the app without setup, and the analysis runs as the data comes in.

The sensors the listing names are the accelerometer, magnetometer, gyroscope, light intensity, pressure, microphone, proximity sensor, GPS, camera and LiDAR or time-of-flight sensor. Which of these an experiment can use depends on what the phone contains.

Exporting sensor data for analysis elsewhere

Each experiment can export the raw sensor data together with the computed results. The files are CSV (comma-separated), TSV (tab-separated) and Excel, so they open in spreadsheet and statistics software. The developer asks users to request any other format they need.

Exporting raw data alongside the results means the same recording can be checked or reanalysed in another program.

Controlling experiments from a computer

A running experiment can be controlled from a web interface on any PC that is on the same network as the phone. The PC needs only a modern web browser; no software is installed on it.

This lets one person operate the phone at a bench while another watches the readings on a larger screen.

Building and sharing custom experiments

Custom experiments are designed in a web editor at phyphox.org. You choose the sensor inputs, define the analysis steps and lay out the views that the phone displays.

Analysis can be as simple as adding two values, or use Fourier transforms and cross-correlation from the toolbox of analysis functions. Finished experiments can be shared with colleagues, students and friends.

What's new

Aug 29, 2026

New spectroscopy experiment
New stroboscope experiment
Redesigned tone generator with up to three tones, waveforms and panning
Replace old Excel export format "xls" with "xlsx", removing the old limit of 65535 lines
New languages: Gujarati, Korean and Tamil
Select data when clearing
New setting to change the default filename
Full screen views of graphs and camera previews move controls to the right when in landscape
Improved edit boxes

Full changelog at https://phyphpox.org/changelog

About this APK

The build we hold is phyphox 1.2.1 (APKS split bundle) for Android 10 and up.

Version: 1.2.1; 1020105
Requires Android: 10+

Package ID: de.rwth_aachen.phyphox
Format: APKS split bundle
Malware scan: Google Play Protect
Permissions: 19 declared · 6 sensitive; Approximate location
Camera
Microphone
Modify files on your device
Precise location
Read files on your device
Signed by: CN=Sebastian Kuhlen, O=RWTH Aachen
Certificate SHA-256: b14dce784742c7249b9fca5fd05b34e6cbbcc596e6f47e7112c7a6025e9839be