HIIT Interval Timer | Cero vs Next Up

Build an interval workout around the way you train. Cero is a flexible interval timer for HIIT, Tabata, circuit training, WODs and HYROX preparation. Set up a quick work/rest timer or program each interval in detail. Distinct colors, large controls and reliable cues keep you focused on the session instead of the clock. BUILD YOUR SESSION • Set work, recovery, sets, warm-up and cool-down. • Create advanced workouts with custom intervals, colors, icons and intensity levels. • Save, duplicate and reorder timers. • Share timers by file or QR code. • Review completed sessions in workout history. STAY IN THE WORKOUT • Follow compatible sessions with Live Activities and Dynamic Island. • Start saved or recent timers from Home Screen widgets. • Use Siri and Shortcuts to start, pause, resume and stop a timer. • Put Gym Display on a larger screen or mirrored TV. • Choose a default song or assign music to individual intervals. • Customize sounds, voice cues, vibrations and background alerts. TRAIN BY HEART RATE Adaptive HR can extend recovery until you reach your target heart rate, then guide hard efforts with low and high alerts. Pair a Bluetooth heart-rate monitor with iPhone or train with heart-rate data from Apple Watch. COUNTDOWN AND STOPWATCH The built-in countdown and lap stopwatch cover warm-ups, station changes, rest periods and race-day practice. Stopwatch sessions continue after you close and reopen the app. ON APPLE WATCH Run saved workouts from your wrist, follow heart rate and use the standalone countdown and stopwatch. Cero can save completed workouts and estimated calories to Apple Health. Automatic iCloud backups help protect saved timers and custom intervals. Useful for HIIT, Tabata, circuits, EMOM-style workouts, boxing rounds, strength and conditioning, indoor cycling, running intervals and hybrid race preparation. Feedback and suggestions: hi@flawless.studio Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Customize Your Intervals, Your Way A fully customizable interval timer: Create your intervals. Specify reps, sets, colours and sounds. Tailor it to your purpose and needs. Minimal design and easy to use. Options for rep-based intervals and images. Display options: Choose to run your timer in a detailed view that auto-scrolls through intervals or a full-screen mode for a larger, easily visible display. Both modes support portrait and landscape orientations. Visual details: In detailed view, running intervals and sets are highlighted, providing a clear visual cue. For intervals with multiple reps, the highlighted area indicates the percentage completed. Set optional background colours on intervals for a visual cue. Light and dark mode versions are available and will adapt to your preferences set on your device. Quick actions: Set an interim interval that will automatically be added between intervals. Optionally, end your timer with the interim interval. Skip or backtrack through intervals using intuitive arrow buttons. Swipe actions allow for easy deletion and duplication of intervals and sets. --- Interval Timer features: • Interval timers: Create timers with unlimited intervals. • Description, Length, and Reps: Set the details of each interval, customizing it to your precise requirements. • Interim Intervals: Quickly set up timers by adding interim intervals that run between each interval. • Interval Sets: Group intervals into sets and specify the desired number of set reps. • Interval Customization: Differentiate intervals with background colors. • Time Display: View countdown of each interval and total remaining time, with an option to display total elapsed time. • Progress and Highlighting: View progress with highlighted current intervals and reps completed. • Start from Any Interval: Choose which interval to start the timer from, providing maximum control. • User-friendly Actions: Effortlessly manage intervals with swipe actions for deletion and duplication. Duplicate button allows for easy copying of intervals, sets, and timers. Arrow buttons enable smooth navigation between intervals. • Background Notifications: Run timers in the background and receive alerts for interval changes and timer completion. • Organize with Folders: Create folders to organize and easily access your timers. • Orientation and Display: Enjoy portrait and landscape orientations, and full-screen mode for a larger timer display. • Light and Dark Mode: Seamlessly switch between light and dark mode to suit your preference. Upgrade features include: • Unlimited timers: Create as many timers as you like. • Sound Options: Enable countdown beeps, set interval/timer sounds, and/or enable text to speech. • Rep-based Intervals: Option to create intervals based on reps instead of time to offer maximum flexibility. • More Interval Customization: Differentiate intervals with images/photos and sounds. • Edit received timers: Flexibility to modify all timers. Subscription - syncing and sharing timers: • Sync and Share: Sync timers across devices and choose to share timers and folders with other users. Sharing via email includes a direct download link and instructions. --- Privacy Policy: https://alysha.dev/interval-timer-privacy-policy Terms of Use: https://alysha.dev/interval-timer-terms-of-use