Supported Features
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Dark Interface
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Differentiate Without Colour Alone
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Reduced Motion
GymTimer: HIIT Interval Timer
Tabata, Circuits & Workouts
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Train smarter with custom HIIT, Tabata and circuit timers. Save routines, schedule reminders and track workout streaks, trophies and progress.
Build custom HIIT, Tabata and circuit workouts with a clear interval timer made for training. Control preparation, work, rest, exercises, rounds and round resets so every session stays on track.
BUILD YOUR WORKOUT
Add a preparation countdown, set work and rest times, choose exercises and rounds, and add a round reset between rounds. The redesigned Home screen shows your whole workout and its total duration at a glance. Save favorite setups so your next session is ready in seconds, with every setting shown on each favorite card.
TRAIN WITH FOCUS
The timer screen fits your device, keeping the countdown large and clear. Turn tick sounds on or off to train the way you like.
CREATE A ROUTINE
Schedule favorite workouts for the days and times that suit you. Smart reminders help you stay consistent.
SEE YOUR PROGRESS
Review workout history, active days, streaks, trophies, and awards. Set a daily activity goal and see how each session moves you forward.
MAKE IT YOURS
Choose themes, timer styles, sounds, week settings, and avatars. Optional cloud sync keeps supported data available across your devices.
Some features require a Pro subscription.
Terms of Use: https://crystalinteractiveentertainment.com/terms
Privacy Policy: https://crystalinteractiveentertainment.com/privacy
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
• Redesigned Home screen: See your whole workout and its total duration at a glance, and change any setting with one tap.
• Preparation time: Add a countdown before your workout starts so you have time to get into position.
• Tick sound control: Turn the ticking during workouts on or off in Settings.
• Redesigned favorite cards: Each favorite now shows all of its settings, so you can pick the right workout faster.
• Timer screen optimization: The timer now fits your screen, keeping the countdown large and clear without extra scrolling.
• New finish screen images: Many new motivating backgrounds celebrate your finished workouts, so the finish screen feels fresh more often.
The developer, Crystal Interactive Entertainment LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Crystal Interactive Entertainment LLC
- Size
- 81.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Frequent
Contests
Contains
Advertising
Health or Wellness Topics
- In-App Purchases
Yes
- Yearly USD 5.99
- Monthly USD 1.99
- Copyright
- © 2026 Crystal Interactive Entertainment LLC