iPhone · iPad · Mac · Apple Watch
SUS4 Time Trainer
Builds your internal clock so you stop relying on the click.
SUS4 Time Trainer builds internal pulse. The exercises are designed to wean you off constant click dependence by progressively increasing the gaps between beats, challenging you to hold the tempo internally rather than follow an external source.
Available on iPhone, iPad, Mac and Apple Watch, the Watch integration lets you feel the pulse through taptic feedback, which trains proprioceptive time rather than just auditory time. That distinction matters for live performance and ensemble playing, where you are often feeling the beat as much as hearing it.
A musician who can hold a steady internal tempo is a more reliable collaborator and a more confident soloist. SUS4 Time Trainer is structured to develop that capability through deliberate, measured practice rather than just playing along to a click and hoping the consistency sticks.
Available on