Circuit Pro: HIIT Timer

Circuit Pro is the clean, powerful HIIT & interval training timer designed to make your workouts simple, structured, and motivating.
Build your own workout circuits with warm-ups, exercises, rest periods, and multiple rounds — all with energizing coach voice cues to keep you on track.

Whether you're doing HIIT, strength circuits, conditioning, CrossFit-style intervals, home workouts, or gym training, Circuit Pro makes timing effortless so you can focus on pushing your limits.

◆ Build Custom Circuits Fast

Create a full workout in seconds:
• Warm-up duration
• Number of exercises
• Exercise length
• Rest between exercises
• Rest between circuits
• Number of circuits
• Optional exercise names
• Coach voice cues + sound effects

Create once, save forever.

◆ Motivating Coach Audio

Stay focused with high-energy voice prompts:
• 3-2-1 countdowns
• “Go!”, “Rest”, “Get ready”
• Circuit transitions
• Workout complete
• Optional motivational cues

Perfect for training with your phone in your pocket.

◆ iCloud Preset Sync

Your saved circuits automatically sync across all your devices.
Start a workout on your iPhone, review it later on another device — seamless.

◆ HealthKit Integration (Optional)

Link your circuits with Apple Watch workouts and view:
• Calories burned
• Heart rate stats
• Workout duration
• Training history

See what you achieved last week, last month, or yesterday.

◆ Clean, Focused Workout Interface

Large timer. Clear phases. Smooth transitions.
No ads. No clutter. Pure training focus.

Perfect For:

• HIIT workouts
• Interval training
• Circuit fitness
• Strength conditioning
• Home & gym workouts
• Fat burning sessions
• Cardio intervals
• CrossFit-style training

Why Athletes Love Circuit Pro

• Super fast to set up
• Extremely easy to read mid-workout
• Voice cues keep you moving
• Works with screen locked
• Designed for HIIT, but perfect for any interval training

Unlock your best training sessions with Circuit Pro — the interval timer built for results.