Speed and Reaction Trainer by R3Z4 is a free Android game that offers multiple tests to challenge your speed, reaction, and time sense. With various modes available for each test, you can try them all for free and never get bored.

The tests include Click Speed, Time Sense, Reaction Speed, and Catch the Square. Each test is designed to help you improve your reaction skills and reflexes, and the game allows you to study your statistics to track your progress. The app is also helpful for gamers engaged in cybersport and can help develop your body and psychological stability.

Overall, Speed and Reaction Trainer is a fun game that can help you test your skills and improve your reaction time. With its worldwide leaderboard, you can compete against other players and strive to reach the top spot. Download this app today and start challenging yourself!