
HIIT Timer - Interval Flex
Custom HIIT & Breathwork
$0.99 · Designed for iPad
Interval Flex: Advanced Interval Timer
Create complex interval sequences that simple timers can't handle. Perfect for HIIT workouts with group repetitions, breathwork patterns like 4-7-8 breathing, and pyramid training routines.
Why Choose Interval Flex:
- Complex Patterns: Group intervals and repeat sections - ideal for boxing rounds, Tabata circuits, and breathing exercises
- Smart Grouping: Set up sequences like "warm-up, then repeat high-intensity/rest 5 times, then cool-down"
- Breathwork Templates: Pre-built sequences for 4-7-8 breathing, box breathing, and custom patterns
- Template Library: HIIT, Tabata, pyramid workouts, and meditation timers ready to use
- Visual Feedback: See which intervals are grouped and how many repetitions remain
- Multisensory Alerts: Sound, vibration, and visual cues for seamless transitions
Perfect For:
- Complex HIIT workouts with grouped intervals
- Breathwork and meditation sequences
- Tabata training with custom rest periods
- Pyramid interval training
- Any timing pattern simple apps can't create
Built for users who need more than basic 30-second/10-second timers. If you've been frustrated by simple interval apps, Interval Flex gives you the flexibility to create exactly the sequences you need.
Download now and build the perfect timer for your routine!
Ratings & Reviews
This app’s overall rating was recently reset.
Minor updates, bug fixes.
The developer, Peter Lebedev, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Peter Lebedev
- Size
- 2.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.5 or later.
- iPhone
Requires iOS 17.5 or later. - iPad
Requires iPadOS 17.5 or later. - Mac
Requires macOS 14.5 or later and a Mac with Apple M1 chip or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 AllStuffAround
