Circuit Hero

Level up your workouts with an interval timer designed for fitness instructors and advanced trainees. For all circuit/time-based workouts – from HIIT to Tabata, TRX to functional strength – Circuit Hero makes it easier to run your class or rock your routine.

Spend more time on things that matter and less on wrangling timers. Build a new workout in less than two minutes – 3x faster than other apps – through the streamlined interface that displays your entire routine at a glance.

Focus your full attention on the workout itself, aided by cues and previews that signal where you are and what's coming. Circuit Hero's distinct countdown timer will show you loud and clear exactly what you need without overloading you with unnecessary info.

Best of all, Circuit Hero is completely free to use – no ads or nagging pop-ups to get in your way. Download and get started in seconds for access to:
• Adjustable interval times by exercise
• Customizable exercise names
• Drag-and-drop circuit reordering
• Adjustable break times between circuits
• Color-coded cues for section type & duration
• Preview of upcoming exercises/periods
• Optional interval start/end audio signal
• 10 total slots for saved workouts
• 3 included pro-designed routines
• iOS Dark Mode support