DefectiveIntervalTimer

Health & Fitness

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Build custom work/rest intervals, choose your rounds, or jump into ready-made training and stretching presets with clear alerts that keep your session moving. NO ADS Defective Interval Timer makes it easy to create and run timed interval sessions for workouts, stretching, training, recovery, practice, and everyday activities. Choose your work time, rest time, number of rounds, and alert volume, then start the timer and follow clear visual, audio, vibration, and notification cues as you move through each interval. Use quick settings to build your own timing pattern or choose from included Northwick Fitness-inspired presets for endurance training, superset/power sessions, and pre- or post-workout stretching. FEATURES • Custom work and rest intervals • Up to 99 rounds • Quick timer setup • Northwick Fitness-inspired presets • Pause and resume controls • Hold-to-reset protection • Clear work, rest, paused, and finished indicators • Audio alerts for interval changes • Vibration feedback • Adjustable alert volume • Background interval notifications • Displays elapsed and total session time • Optional $1 Support Developer purchase • Works without an account • No internet connection required for timer use • No ads The optional Support Developer purchase does not unlock content, remove restrictions, change timer features, or provide any advantage. Whether you are exercising, stretching, studying, practicing, or completing timed tasks, Defective Interval Timer helps keep every session organized.

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This update adds an optional $1 Support Developer purchase and includes general compatibility and interface improvements. The existing interval timer, presets, alerts, vibration, and background timing features remain unchanged.

Version 1.1

The developer, ROBERT ALLEN NORTHWICK, 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.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • DefectiveRobot LLC
    Size
    • 713.7 KB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 26.5 or later.
    • iPhone
      Requires iOS 26.5 or later.
    • Mac
      Requires macOS 26.5 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.5 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 DefectiveRobot LLC
  • Privacy Policy

    • More by ROBERT ALLEN NORTHWICK