Tap the screen as the needle hits the bolt.

Stop the moving needle exactly at the right time.
Challenge yourself and your friends to higher levels of precision.

From the day we're born to the day we die, our brains continuously revises and remodels, improving or slowly declining, as a function of how we use it. If a brain is exercised properly, anyone can grow intelligence, at any age, and potentially by a lot.

Exercise your motor reflexes with this strategy reflex puzzle. Sustain or even rejuvenate your brain's accuracy, reliability and motor reflexes.

Tap anywhere on your screen to start and the black needle begins moving towards the red bolt in a clockwise motion. Stay sharp.

Sure - you've gotten the handle on this. But how are you stacking up compared to your friends. Challenge your friends. Make it social.

Rejuvenate your brain's accuracy, reliability and motor reflexes daily.

Constraint-based puzzle performance can be learned and accuracy improved.

Performance increases in groups. See how you stack up against your friends and improve the team's overall performance.

Slappy Lock is your daily brain exercise machine to enhance your precision and motor skills.