IntervalFree
Simple Interval Timer
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
100% free interval timer—no ads or paywalls. Runs in the background with Live Activities. Unlimited custom profiles, 20+ icons, and sound themes. Just train.
IntervalFree is the workout interval timer that's actually free. No paywalls. No ads. No tricks. Every feature is unlocked from day one — and stays that way forever.
SET UP IN SECONDS
Configure your action duration, break duration, and number of sets with intuitive scroll pickers. Tap Start and your profile is saved automatically. No account required.
GLANCEABLE & MULTITASK-READY
A large timer ring shows your remaining time at a glance—green for action, blue for break. With Live Activities, your progress stays visible right on your Lock Screen or Dynamic Island. Switch apps or lock your phone with confidence; the timer runs perfectly in the background.
YOUR SOUND, YOUR PACE
Choose from multiple Sound Themes to match your workout vibe. High-fidelity audio alerts keep you on pace even when your phone is in your pocket, and our smart audio handling ensures your music stays clear while the timer beeps.
SAVE UNLIMITED WORKOUT PROFILES
Create as many workout profiles as you need. Name each one, pick from 20+ activity icons (running, swimming, yoga, boxing, and more), and choose from 10 colors. Every profile is instantly recognizable in your workout library.
YOUR WORKOUT LIBRARY
See how many times you've started and finished each workout. Tap any profile to load it instantly—no re-entering settings every time. Quick-start chips let you jump into your most-used routines in one tap.
CELEBRATE EVERY WIN
Every completed workout gets a celebration screen with your stats, a trumpet fanfare, and a fun animated surprise to keep you motivated.
FULLY CUSTOMIZABLE
• Background Support: Use other apps while you train
• Live Activities: Real-time progress on your Lock Screen
• Sound Themes: Multiple audio styles to choose from
• Adjustable action and break durations (seconds to minutes)
• 1 to 99 sets per workout
• 20+ workout icons & 10 profile colors
• Profiles auto-save on start
WHY INTERVALFREE?
We were tired of interval timer apps that lock basic features behind subscriptions. So we built one that gives you everything—for free. No premium tiers. No "free trial" that expires. No data sold to advertisers.
IntervalFree is maintained by a small team who believes great tools should be free. If it becomes part of your routine, you can support us with a voluntary coffee—but there's absolutely no pressure.
Perfect for HIIT, Tabata, circuit training, boxing rounds, stretching, meditation, or any activity that uses timed intervals.
Requires iOS 17.0 or later. Works on iPhone and iPad.
Ratings & Reviews
Now runs in the background with Live Activity support! Personalize your workout with all-new sound themes.
The developer, LIFEFLOW AI, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- LIFEFLOW AI, LLC
- Size
- 7.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 LifeFlowAI LLC