Interval Flex

Download on the App Store

IntervalFlex: Your private workout companion. No data collection, no in-app purchases, no account required – just pure, unrestricted interval training at your fingertips.

Top Features

  • Create custom interval sequences
  • Choose from pre-made sequence templates
  • Group intervals for complex training patterns
  • Set repetitions for interval groups
  • Visual and audio cues for interval transitions
  • Customize transition and end sounds
  • Keep screen on during active sequences
  • Dark mode support
  • Haptic feedback for interval changes
  • Intuitive and user-friendly interface
Customizable Sequences Screenshot

Customizable Sequences

Create and save your own interval sequences or choose from our pre-made templates. Perfect for HIIT, Tabata, or any custom workout routine.

Flexible Sequence Setup

Group intervals, set repetitions, and customize your workout flow. Our intuitive interface makes it easy to create complex training patterns.

Flexible Setup Screenshot
Active Sequence View Screenshot

Active Sequence View

Stay focused during your workout with our clear, easy-to-read active sequence display. Visual and audio cues keep you on track and motivated.

Sequence Statistics

Track your progress and stay motivated by seeing how often you've started and completed this sequence.

Sequence Statistics