LeedyBox Games

Two quick tests for your phone: how fast you react, and how fast you calculate.

Coming soon to Google Play

• Reaction Time Test

  Tap the moment the box turns green. After five tries you get your average, median and best reaction time in milliseconds, with an explanation of what affects the result.

• Mental Math Speed Test

  Solve as many addition, subtraction, multiplication and division problems as you can in 60 seconds, at three levels. See which operation slows you down, and tips to get faster.

• Works offline: only the ads need an internet connection.
• No account. Your results are saved only on your device.
• In English, Korean, Japanese, Spanish and German.

The games are played in the app. This site has information about the app and its privacy policy.