A once-a-minute pulse is what people set to pace work by the clock: a minute per practice-test question, a minute a page or a problem, a minute a station, or a simple cue to glance up and check progress. One clear beep marks each minute so you can stay heads-down.
Five minutes out of the box covers a short set of questions; stretch the run for a longer paper or a full rotation. Each minute leads straight into the next, so the pulse never drifts.
A three-quarter-minute beat: one beep every 45 seconds, repeating, for longer holds, drawn-out drill rounds, and process steps that take most of a minute.
Bridging one and two minutes — a beep every 90 seconds, on repeat, for process stages, longer drill rounds, and paced cycles. No account needed.