iPhone Screenshots


Perform a hand-tremor check and measure the involuntary shaking of the hand with the sensors of your iPhone - fast, precise and easy-to-use!

Characteristic tremors are symptoms in many medical fields and illnesses, e.g. in Parkinson's disease, drug or alcohol withdrawal, hypothermia, multiple sclerosis.

The app is specifically designed for medical usage e.g. neurologists and psychiatrists, doctors, students, or patients performing a self-check. It has an easy to use interface, graphed results and an optimized test procedure.

It uses spectrum analysis for all 3 axis of the accelerometer to detect the amplitudes of frequencies between 1 and 20 Hz during a 10 second test interval. The accuracy level as been optimized to 0.1 Hz. The amplitude ranges from 0-3g with a resolution of 1 milli-g. Therefore, it is very accurate in detecting even slightest tremors of healthy persons. The graphed results can be further interpreted with help of the information section.

Moreover it has a test history for the previous 15 tests, mailing and screenshot feature of tests, audio and vibration notifications and customizable test settings.

What's New

Version 2.0

Complete new interface and test procedure. Greatly optimized accuracy to 0.1 Hz and 1 milli-g.
New features: Saving of 15 previous tests, mailing and screenshot feature, Zoom-In, customizable tests, instructions.

Ratings and Reviews

Needs an iOS 10 update


As someone suffering from a debilitating condition called essential tremor, this app has really helped me to figure out trends, patterns and most importantly, whether or not the next thing I am trying is *actually* working and to what extent, rather than guessing and wondering if it's in my imagination.


Thomas Kasper
3.4 MB
Requires iOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2012 Thomas Kasper


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like