IntervalFree vs HIIT Block

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. GO CUSTOM: BUILD ROUTINES BLOCK BY BLOCK Need more than one interval pattern in a session? Switch to Custom mode and build your routine block by block — a warm-up, a legs circuit, an abs finisher — each with its own action time, rest time, and number of rounds. Add a breather between blocks or keep it rolling; the whole session runs as one seamless timer. Prefer things simple? Simple mode hasn't changed at all. You'll never have to touch Custom, and everything you've already saved looks and behaves exactly as before. 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 — NOW PROTECTED 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 saved presets are now protected: the settings can't be changed by accident — tap Edit first. Your edits are kept when you tap Save Preset, or when you start the workout. 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 • Custom mode: multi-block routines with per-block intervals • Protected presets: no more accidental overwrites • 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.

Your Workout. Your Rules. HIIT Block is the ultimate minimalist interval timer designed for athletes, gym-goers, and home-workout enthusiasts. Whether you're crushing a Tabata, pacing an EMOM, or pushing through an AMRAP, HIIT Block keeps you focused on your training - not your screen. With a bold, distraction-free interface and loud audio cues, you'll always know exactly where you are in your circuit from across the room. CORE FEATURES (FREE): • Quick Start Presets: Instantly launch standard Tabata, EMOM, and AMRAP timers with one tap. • Flexible Adjustments: Easily tweak the work time, rest time, and total rounds of any preset to match your exact fitness level. • Clean UI: Large, color-coded blocks (Red for Work, Green for Rest) that are easy to read through the sweat. UNLOCK HIIT BLOCK PRO: Ready to take your training to the next level? Upgrade to Pro (available via a 7-Day Free Trial or a One-Time Lifetime Pass) to unlock: • Custom Workout Builder: Create complex, multi-block interval circuits completely from scratch. • Save Your Library: Save your custom routines for instant, one-tap access on your next gym day. • Advanced Statistics: Track your consistency with daily streak counters and view your total time trained. • Workout History: Look back at a comprehensive log of every session you've completed to monitor your progress. Subscription Terms: HIIT Block Pro is available as a Monthly subscription (with a 7-day free trial) or a one-time Lifetime purchase. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscriptions by going to your App Store Account Settings after purchase. Privacy Policy: https://hiitblock.com/privacy Terms of Use: https://hiitblock.com/terms