Pick the structure that fits your workout — you can switch types anytime once you start building.
Rotate through named exercises with optional breaks. Stations of any duration.
Back-to-back HIIT blocks — every round of one exercise, then on to the next.
Fixed work/rest intervals, repeated for a set number of rounds.
Simple timed rounds with breaks. Boxing, MMA, sparring.
Build any interval sequence from scratch, one by one.
Stack other timers into a multi-block session, cycled as a whole.

The full Seconds experience — on iPhone, Apple Watch, and Android.