The Ultimate Competitive Speedcubing / Rubik's Cube Timer. 100% Free.
SOLVE LIKE A REAL COMPETITION
CompSim allows you to practice like you're at an official speedcubing competition.
SET YOUR TARGET
Set your own goals and crush them.
CUSTOMIZE YOUR EXPERIENCE
Adjust the settings to fit your style of practice.
ANALYZE YOUR SESSION
See all the averages you've done, color-coded by win/loss.
GET IN TOUCH
EVALUATE YOUR AVERAGES
View the individual times and scrambles in each of your competitive averages.