About Kruxmind

Kruxmind is a complete speedcubing tool, built to help you understand and improve how you solve the cube.

Timer (for everyone)

Timer with scrambles and images for every WCA event (3x3, 2x2, 4x4–7x7, Pyraminx, Skewb, Megaminx, Square-1, Clock), 15-second inspection with alerts (visual and voice at 8 s and 12 s), and the WCA penalty model (+2 / DNF). Every solve is logged with ao5, ao12, PB, full history and phase breakdown (Cross, F2L, OLL, PLL).

Multi-device sync (with an account)

Create an account and turn on sync to follow your history across more than one device: solves merge without duplicating, even if you trained on two devices at once, and you can merge, split or clean up duplicates across your whole history from any of them. Import your history from csTimer, Twisty Timer or CubeDesk with automatic format detection. Without an account, your data stays only on the device you train on.

Algorithm library (for everyone)

Full CFOP (OLL, PLL, F2L), 2x2 (Ortega, CLL, EG), Roux, COLL, notation, dictionary and patterns, with clear diagrams. OLL, PLL and COLL recognizers to train the see-to-execute step.

Trainers (for everyone)

Practice modes to sharpen recognition and speed.

Performance analysis (Pro · requires age verification)

Kruxmind turns your solves into signals about your execution: consistency, smoothness, recovery and phase interpretation. These are calculations on your own data, on your device. The idea is simple: see where the time goes so you know what to practice.

Performance exercises (Pro · requires age verification)

A layer of exercises — planning, visuospatial reading, spatial memory and dexterity — inspired by the tasks used in Zarei et al. (2025), a peer-reviewed study on speedcubing.

Honest about what it does (and doesn't)

Kruxmind measures your cube-solving performance. It is not a medical device, it does not measure brain activity, and it does not claim to improve your intelligence or prevent any condition. References to research describe the tasks we draw on and their limits; you can review them in our Scientific basis section. Training the cube mostly improves what's closest: the cube itself and skills tightly linked to it.

Some free modules may show ads, only with your consent and never during a solve. Available in Spanish, English, Portuguese (BR) and German.