Circuit Timer vs Loop Timers

Build your own interval circuits for HIIT, Tabata, boxing rounds, EMOM and circuit training, then run them with precise timing, voice announcements, sounds and haptics. CREATE YOUR PERFECT WORKOUT Design circuits with unlimited intervals, each with its own name, duration and alarm sound. Repeat single intervals or the whole circuit, by count or for a set time. Choose from 24 alarm sounds, a spoken countdown, or both. STAY IN THE ZONE A full-screen player with a progress ring, countdown and interval timeline keeps you focused. The final seconds of each interval pulse so you're ready for what's next, and voice announcements call out each interval by name, so you never have to look at your screen. TRAIN WITH YOUR MUSIC Interval sounds play over your music instead of pausing it. The current interval and countdown stay on your Lock Screen and in the Dynamic Island, and cues keep working through phone calls. Start any circuit hands-free with Siri. APPLE WATCH Run circuits from your wrist with live heart rate, heart rate zones, active calories and a tap at every interval change. Starting a workout on your iPhone? Your watch follows along with the same taps and your heart rate. A Smart Stack card keeps the current interval in view, even with the app closed. TRACK YOUR PROGRESS See your workout history with streaks, completion stats and total training time. Save workouts to Apple Health as High Intensity Interval Training. FREE TO START • 1 circuit with every feature: alarms, haptics, voice and history CORE UPGRADE • Unlimited circuits • iCloud sync across your devices • Apple Health PRO UPGRADE • Everything in Core • Apple Watch app Both upgrades are one-time purchases. No subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Loop is a clean, iOS-native interval timer that lets you chain a sequence of timers and repeat them as many times as you want. Build a routine in seconds — name each segment, set its duration, and choose how many times to loop the whole thing. Loop's wheel pickers feel like the stock Clock app's, and the live ring counts down each interval at a glance. Lock your phone mid-routine and Loop still cues you at every boundary via local notifications, mirrored to your Apple Watch. No accounts. No tracking. Just a timer that does more. Whether you're running Tabata rounds, timing a recipe, pacing study sessions, or running drills — if it's a sequence with a repeat count, Loop handles it. Built-in presets: HIIT, Tabata, Pomodoro, Box Breathing, Boxing Rounds, 7-Minute Workout, Meditation, and Power Nap.