Round: HIIT Workout Timer
Tabata Interval & Gym Timer
Free · Designed for iPad. Not verified for macOS.
Round is a visual interval timer for HIIT, Tabata, circuit training, strength workouts, mobility, and stretching.
TRAIN WITH 3D MOVEMENT GUIDES
Choose from 71 exercises and see each movement in 3D while building your routine and while the timer runs. Side-specific and alternating exercises are handled clearly, so you always know what comes next.
BUILD A ROUTINE IN SECONDS
• Start with a ready-made template or build from the exercise catalog
• Reorder, duplicate, edit, and delete steps directly
• Add custom exercises with your own name and emoji
• Set work, step rest, set rest, preparation, and number of sets
STAY FOCUSED
• Follow the 3D animation or switch to a larger remaining-time display
• See your current step, progress, and upcoming lineup at a glance
• Audio and haptic cues announce every transition
WORKS WITH WATCH
Control your workout from your wrist and receive haptic cues without reaching for your iPhone.
TRACK YOUR PROGRESS
• Sessions are logged automatically
• Review total training time, streaks, and your most-used routines
• Save workouts to Apple Health
• Delete individual history entries whenever needed
No account. No ads. Fully offline.
more This one's all about the moment you finish, and getting started faster.
• A finish screen that knows your workout — The headline now reflects what you actually did, like your first full finish, a new personal best or a streak
• A cleaner Home on iPhone — Timer cards are now wide, so you can see the time, steps and sets at a glance
• Start sooner — The countdown before your first exercise is now 3 seconds. Prefer it longer? You can change it anytime in Settings
• A more lifelike Jump Squat — The animation is now based on real motion
• Apple Watch and iPhone, reliably in sync — Ending a paused workout on Apple Watch now always stops your iPhone timer too
• Little touches throughout — Long preset names fit neatly, and button text is easier to read in every color
2.0.7 23h ago
Thanks for sticking with your training! This update makes everyday workouts smoother.
• Reminders that fit your week — Pick the days you train, or get a nudge after a few days off
• End early, your way — Save what you've done so far, or discard the session
• Results that show what you really did — The finish screen and result cards now show the actual time for each step
• Smoother to use overall — The timer and edit screens got small touches that make everyday workouts easier
2.0.6 Oct 2
• Landscape on iPhone — Turn your phone sideways and the timer, the finish screen and your share card all fit the wider view
• Weekly reminder — Get a nudge on the day and time you already train, and change it any time in Settings
• Timer cards you can read at a glance — Every card shows a short description plus how many exercises and about how long it takes
• A better fit on iPad — In landscape, or while you resize the window in Split View and Stage Manager, your home screen and history stay readable
2.0.5 Sep 23
• Share a workout you're proud of — Pick any past session from History and post its result card
• Your result card reaches Instagram and X — The image attaches every time now
• The timer stays right even if you leave the app — Time spent paused no longer runs away from you
• History you can trust — One entry per workout, and Watch sessions keep their icon
2.0.4 Sep 13
• Redesigned Live Activity & Dynamic Island — See your current exercise and remaining time at a glance, even on the Lock Screen
• Share your progress in one tap — Send your workout results straight to Instagram and Messages
• Perfectly synced timer between iPhone and Apple Watch — Stays accurate even with the screen off or the app in the background
• Smoother, more reliable settings — Vibration, sound, and prep-time now apply exactly as you set them
2.0.3 Sep 4
• Pause and resume in 3D — Exercise animations now continue from exactly where you paused, instead of jumping back near the start
• Apple Watch pause now pauses your workout — The Health workout and its elapsed time stop with the timer instead of running on
• Goblet squat form — The dumbbell is now held correctly in front of the chest in the 3D animation
• Stability improvements — Various fixes across iPhone and Apple Watch
2.0.2 Aug 20
• Skip preparation — Start the first work interval immediately without waiting for the countdown
• Recently used timers first — The timer you last started now moves to the top of the list
• Clearer exercise selection — The Add button now shows the exercise you selected
• Exercise names in more languages — The catalog is now localized in German, French, Spanish, and Brazilian Portuguese
• More lifelike exercise guides — Inchworm motion is more natural, and dumbbells and bands now move with the 3D guide
• Easier-to-see workout visuals — Larger rings and animations, sharper exercise images, and a clear fallback for steps without a guide
• Smoother, more reliable workouts — Animations keep playing in Low Power Mode, portrait layout stays stable, and history cleanup no longer crashes
2.0.1 Aug 11
• 3D exercise animations — See movement guides for 71 exercises while choosing exercises and during your timer
• Redesigned routine builder — Start from the exercise catalog or a template, then reorder, duplicate, edit, and delete steps more easily
• Custom exercises — Create your own exercises with a name and emoji
• Smarter left and right movements — Paired-side and alternating exercises are handled more clearly throughout your routine
• Choose your timer display — Switch between 3D animation and a larger remaining-time view in Settings
• Delete individual history entries — Remove unwanted workout records one at a time
2.0.0 Aug 1
• Français & Português — Round is now fully available in French and Brazilian Portuguese
• Localized Siri phrases — Start, create, and view your timers by voice in more languages
• More accurate Health workouts — Paused time is now excluded from the duration saved to Apple Health
1.2.8 Jun 21
• New iOS 26 design — Timer, results, History, Stats, and the preset editor adopt the new Liquid Glass surfaces
• Apple Watch redesign — The timer and preset list move to the watchOS 26 Liquid Glass style
• Accessibility throughout — Operate timers with VoiceOver and Voice Control, text follows Dynamic Type, Reduce Motion is respected, and phases read clearly without relying on color alone
• Siri & Shortcuts — Start a timer, create a preset, or open History from Shortcuts and Siri
• Now in Spanish and German — Fully localized for es and de
• Stability & polish — Widget activity graph scaling, countdown beep timing, stats comparison display, and contrast improvements throughout
1.2.7 Jun 9
• Redesigned completion screen — A clearer summary of your results when a timer finishes
• Step overview on Apple Watch — Swipe to check your full step lineup while the timer is running
• Simpler set control on Apple Watch — Skip the pre-start sheet and change the set count right on the timer screen
• Stability improvements — More accurate progress ring and set tracking on Apple Watch
1.2.6 Jun 3
• Redesigned home — Your Timers grid shows every preset at a glance on the first tab
• Change sets while you run — Adjust set count and check n/m progress right from the timer screen
• Polish across the app — Refined Ready screen, settings layout, and widget graph alignment
1.2.5 May 27
• Apple Watch always-on timer — Keep the timer visible when you lower your wrist (new default; dimming still available in Settings)
• Refined completion screen — Smaller, localized time units; Watch fix that no longer gets stuck on "0s" after a wrist lift
• Bar chart shows quiet weeks — History graph keeps its frame even on weeks without workouts
• Medium widget weekday order — Now starts on Monday, matching the in-app view
• Smoother timer accuracy — More reliable when returning from background
1.2.4 May 19
• Redesigned Stats tab — Calendar-aligned week / month / year paging with built-in comparison to the previous period
• Smarter preset details — Total duration on the preset card, an undo toast when deleting, and accent color that now cascades to history, stats, calendar, and widgets
• Safer editing — Confirmation when discarding unsaved changes, plus an alert if saving fails
• Apple Watch improvements — Clearer empty-state guidance, more reliable preset sync, and fewer spurious haptics
• UX polish and stability — Tighter dark-mode contrast, larger tap targets, faster widget refresh, and crash fixes around timer steps and background resume
1.2.3 May 11
• Renamed to Round — The app was formerly called Arc Timer; name and branding have been updated
• Minor UX improvements
1.2.2 May 4
• Easier-to-tap timer buttons — Close, reset, and step list controls now have larger hit areas
• Quick info on home cards — A new list button opens a sheet showing each timer's steps, with edit, duplicate, and delete in one place
1.2.1 Apr 28
• Redesigned onboarding — A category-based flow to help you find the right preset style from the start
• New sample presets included — Warm-Up, Weight Training, and Cool-Down are ready to use right away
• Various small UX improvements throughout the app
1.2.0 Apr 27
• Completion screen on Apple Watch — Your results now appear with an animation when a timer finishes
• Compare with previous periods in History — See at a glance whether your numbers are up or down from last week or last month
• Customize Health app recording — Choose per preset whether to log workouts, and pick the activity type (yoga, HIIT, strength training, and more)
• Improved iPad layout — A layout that makes better use of the larger screen
1.1.9 Apr 17
• Redesigned widgets — Check your timer setup and recent activity right from your home screen
• Improved completion screen — Your results are now revealed with an animation when a timer finishes, making every session feel rewarding
• Smarter "Top Timers" in Stats — Timers are now ranked by total training time, not just how often you've used them
• Home screen improvements — Newly created timers now appear front and center right away
1.1.8 Apr 10
• Visual design updates
• Various bug fixes and performance improvements
1.1.7 Apr 3
• Home Screen Widget — See your presets on the home screen and launch a timer with a tap
• Siri Support — Start any timer with "Start [preset] in Arc Timer"
• Adjust Sets on the Fly — Change the set count just for this session, right before you start (iPhone & Apple Watch)
• History on Apple Watch — Browse your workout history from your wrist
• Final Set Signal — Haptic feedback when the last set begins
• Personal Record — Get notified when you beat your longest session
• Completion Summary — See your total sets and time on the finish screen
• Quit Progress — Check how many sets you completed before stopping
• Stats Improvements — Added "All Time" view / Activity chart now color-coded by preset / New insights for monthly trends, peak hours, and top days
1.1.6 Apr 1
• Your recommended timer now appears as a featured hero card
• You can now reorder steps within a preset
• Various bug fixes and performance improvements
1.1.5 Mar 22
• Various improvements for a smoother experience.
• Improved the layout on iPad.
1.1.4 Mar 18
• Refreshed the app icon
1.1.3 Mar 10
• Apple Watch: Improved timer synchronization and reliability
• Fixed a bug where home screen could trigger duplicate actions on launch
• Under-the-hood improvements for better performance and stability
1.1.2 Mar 6
This one's all about the moment you finish, and getting started faster.
• A finish screen that knows your workout — The headline now reflects what you actually did, like your first full finish, a new personal best or a streak
• A cleaner Home on iPhone — Timer cards are now wide, so you can see the time, steps and sets at a glance
• Start sooner — The countdown before your first exercise is now 3 seconds. Prefer it longer? You can change it anytime in Settings
• A more lifelike Jump Squat — The animation is now based on real motion
• Apple Watch and iPhone, reliably in sync — Ending a paused workout on Apple Watch now always stops your iPhone timer too
• Little touches throughout — Long preset names fit neatly, and button text is easier to read in every color
more Version 2.0.7 23h ago
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