AppYonder

DefectiveIntervalTimer

DefectiveRobot LLC

No ratings yetHealth & FitnessAges 4+

Get it free on the App StoreOpens Apple's App Store

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About this app

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.

What's new

Version 1.2 · Sep 9, 2026

This update adds a recurring Rate App + Support Developer reminder system. The first reminder appears on the 10th app opening, then every 30 openings after that. Rating is offered once, while the optional $1 Support Developer purchase remains available for repeat support. Timer functionality, presets, background notifications, sounds, and haptics remain unchanged.

In-app purchases

The most popular purchases on the App Store.

  • Support Developer $1Consumable0,99 €

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