RoundShift: Interval Timer
RoundShift: Interval Timer is made and published by Carl Law. AppBrain is an independent app data site and isn't affiliated with Carl Law. The app name, icon, screenshots and description belong to Carl Law and are shown as published on the App Store.
AppBrain's verdict
- Rating on App Store
- 5.00
- 1 ratings
- Last updated
- July 31, 2026
- Size
- 143.0 MB
It doesn't have enough ratings yet to judge what users think.
User feedback
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Store listing
By Carl Law, from the App StoreDescription by Carl Law Written by the developer, not by AppBrain. Click to read.
RoundShift calls out every round — get ready, work, rest, half way,
last round — so your eyes stay on the workout, not the screen.
BUILT IN SECONDS
• Tabata, HIIT, EMOM, strength presets — or design your own
• Warm-up, custom intervals, unlimited rounds
• Describe a workout in plain words and let RoundShift build it
VOICE THAT COACHES
• Real coach voices in 10 languages — or calm and hype styles
• 89 exercise names spoken aloud in custom workouts
• Works with the screen off, phone face down, music playing
COACH MODE ON THE BIG SCREEN
• AirPlay the countdown to any TV for group sessions and classes
• Giant display the whole room can read
APPLE WATCH + ADAPTIVE REST (PRO)
• Full timer on your wrist with live heart rate
• Rest that adapts: end rest early when your heart rate recovers,
or extend it when you need more
• Workouts logged to Apple Health with the right activity type
SEE YOURSELF SHOW UP
• Streaks, weekly minutes, and a calendar of every session
• Home Screen widgets and quick actions
NOT JUST FOR THE GYM
• Box breathing and breathwork: 4-4-4-4 in seconds
• Stretch and physio holds with spoken changeovers
• Focus sprints for study and deep work
• Anything that repeats: intervals are intervals
RoundShift is free forever for running timers and built-in workouts.
RoundShift Pro (one-time purchase, no subscription) unlocks saved
workouts, stats, widgets, and Apple Watch.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 143.0 MB
- Content rating
- Everyone
Technologies used by RoundShift: Interval Timer
Releases
Updates seen on the App Store- Version
- 1.3
- Launched
- July 2026
No changelog data
Alternatives
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Rankings
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About the app and developer
About RoundShift: Interval Timer
RoundShift: Interval Timer is a health & fitness app developed by Carl Law.
User Ratings
RoundShift: Interval Timer is rated 5.00 out of 5 stars. The rating is based on one rating ratings.
App Information
RoundShift: Interval Timer is freely available from the App Store. The app size is 142.99 MB. The latest version available is 1.3. The last update was on July 31, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since July 2026.
Developer information for Carl Law
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