Shake Meter - Hand Tremor Test

Hold your phone still for 5 seconds and see your Stability Score. From Neurosurgeon to Seismic Event — where do your hands rank?

Hold your phone still for 5 seconds — find out how steady your hands really are. Shake Meter uses your phone's accelerometer to capture every micro-movement and turn it into a Stability Score from 0 to 100.

[How It Works]

• Hold the phone firmly with both hands
• A 3-second countdown begins automatically
• Stay as still as possible for 5 seconds
• The accelerometer captures movements at 50 samples per second
• Your Stability Score and Tremor Index appear instantly

[What Your Score Means] Neurosurgeon (90-100): Your hands are steadier than a robotic arm. You could thread a needle in a hurricane. Stone Cold (75-89): Ice-cold precision. Your hands make calculated, deliberate decisions. Pre-Coffee Mode (55-74): Solid stability, even before the morning caffeine kicks in. Vibration Enthusiast (35-54): Your hands hum like a phone on silent. Something exciting going on? Human Maraca (15-34): Not shaking — percussing. You have a rhythm all your own. Seismic Event (0-14): Scientists have registered your tremor on the Richter scale.

[Features]

• Real-time seismograph waveform during measurement
• Stability Score from 0 to 100
• Tremor Index in scientific units (g)
• Hand Signature — your personal tremor pattern as a unique waveform
• Personal best tracking
• 9 languages: English, Korean, Japanese, Chinese, Spanish, French, German, Portuguese

[Fun Ways to Use It]

• Compare your score before and after coffee
• Test dominant hand vs. non-dominant hand
• Challenge friends to beat your score
• Check how fatigue affects your stability

Take the test now — and find out which category you fall into.