A free app from RWTH Aachen University that turns a phone's own sensors into lab instruments: acceleration, sound, light, magnetic field, pressure. Data can stream live to the board.
Interactive Transform
Pairs tilt, turn and carry a school tablet while phyphox shows its accelerometer, magnetometer and pressure sensor live, to work out which sensor sits behind screen rotation, the compass, step counting and floor detection.
Groups seal a school phone running phyphox inside three packaging designs, drop each from one metre, and compare the peak deceleration the sensor records.
Passive Transform
The same A is played on a tuning fork, a flute, a violin and sung, while a phone running phyphox streams a live spectrum to the board and the class watches each timbre appear as a different pattern of harmonics.
The PE teacher wears a chest-strap heart-rate monitor linked to phyphox and does a three-minute step test while the class watches the live graph climb, level off and fall on the board.
The teacher slides a bar magnet along a metre rule towards a phone running phyphox, and the class watches the strength of a field they cannot see rise, fall away and reverse on the board.
A technician carries a phone running phyphox up the school stairwell while the class watches the air pressure reading step down, landing by landing, on the board.
This page is one of a growing set of PICRAT examples by cell, subject and grade. Page maintained by Andy Perryer.