Reaction Speed Test

Reaction Test is a simple offline app for testing visual reaction time. A signal or color appears after a random time, then you tap as fast as you can to measure your reaction time in milliseconds.

The app works completely offline, without an internet connection, no account, no ads, no analytics, and no data collection. All results are displayed within the session only, and the best local score can be optionally saved to the app's storage on your device.

Features:
Clear and easy-to-use visual reaction test.

Results in milliseconds within the app.

Session average, last score, and optional best local score.

Modern Material 3 design.

Works completely offline.

Privacy Notices:

The app does not collect data.

The app does not share data.

The app does not use the internet or any network API.

The app does not require any permissions.