HIIT Timer: Blaze Pro Interval

Blaze: Precision HIIT Timer

Take absolute control of your intervals with Blaze, the premium, precision-engineered fitness timer designed for serious athletes, personal trainers, and strength coaches. Whether you are programming a classic Tabata, an intense EMOM, an AMRAP block, or complex custom circuit training, Blaze delivers microsecond accuracy that never drops, even when your screen is locked.

ONE-TIME PURCHASE. ZERO SUBSCRIPTIONS. ZERO ADS. 100% OFFLINE.
Blaze is a dedicated professional tool. No accounts to create, no hidden in-app purchases, and no data tracking. Fully functional out of the box, anywhere in the world.

Locked Screen Reliability: The timer engine will not pause, lag, or stop when your phone goes to sleep, backgrounds, or enters Do Not Disturb.

Audio and Haptic Cue Synchronization: Get high-visibility feedback via gapless audio tones and heavy haptic pulses fired exactly 50ms before the visual transition to eliminate hardware latency.

Audio Overrides: Features full background audio mixing. Blaze perfectly ducks your Spotify, Apple Music, or podcasts during cues without interrupting your flow.

ADVANCED WORKOUT BUILDER AND PROGRAMMING
Stop dealing with restrictive timer apps. Blaze lets you build complex, nested training structures with ease.

Fully Customizable Rounds: Program distinct Work, Rest, Prepare, and Cool-Down phases.

Nested Multi-Round Blocks: Set specific repeat counts and custom rest intervals between multi-phase blocks.

On-the-Fly Adjustments: Instantly add or subtract 5 seconds from an active phase, skip forward, or jump back a round using fast-response touch controls.

Accurate Duration Forecasts: Real-time total duration calculations update instantly as you construct your routine.

DESIGNED FOR READABILITY AT ARM'S LENGTH
When you are mid-set, you should not have to squint at your screen. Blaze features a striking, high-contrast, dark-first interface optimized for rapid glances.

Full-Bleed Visual Sweeps: The entire screen color shifts seamlessly on phase transitions (Deep Red for Work, Deep Teal for Rest, Amber for Prepare).

Titan Countdown Numbers: Tabular-spaced, massive system typography reads effortlessly from across the gym floor.

Screen Lock Mode: Freeze the active session UI with a single gesture to prevent accidental touch inputs or pocket-pauses during intense movements.

INTELLIGENT COACHING AND VOICE CUES
Keep your eyes on your form, not the clock.

Text-to-Speech: Natural voice cues announce your custom interval names (such as Burpees or Active Rest) the exact moment the phase begins.

Countdown Beep Control: Customize your final warning countdown beeps from 1 to 10 seconds.

Pro Sound Packs: Toggle between Classic Digital Blips, Boxing Gym Bells, or Modern Fanfare packs to suit your training environment.

PRIVATE, OFFLINE ANALYTICS AND HEALTH INTEGRATION
Your workout data belongs entirely to you. Blaze operates completely offline without data-harvesting SDKs.

Apple Health and Google Health Connect: Opt-in to seamlessly sync active energy burned, workouts, and circuit times directly to your device's native health platform.

Detailed History and Streaks: Review your completed or partial sessions grouped by week and month. Monitor your consecutive training streak with zero cloud dependencies.

CSV Data Export: Generate clean spreadsheet logs of your full training history instantly via the native system share sheet.

PERFECT FOR ALL TRAINING PROTOCOLS:

Tabata Classic: 20s Work, 10s Rest for 8 intense rounds.

EMOM: Precise 60-second structural programming for strength and conditioning.

AMRAP: Continuous high-endurance countdown blocks up to 99 minutes.

Pyramid and Ladder Workouts: Dynamically changing phase durations built step-by-step.

Functional Fitness and Combat Sports: Ideal for boxing rounds, MMA circuits, wrestling drills, and weightlifting rest cadences.

Upgrade your training toolkit. Ditch the subscriptions and ads. Experience true precision with Blaze.