IntervalGuide

tremia.app

Contains adsIn-app purchases

About this app

Your workout. Your rules. Build custom interval timers that work exactly the way you train.

IntervalGuide lets you design interval workouts block by block — set work and rest periods, choose audio cues, assign colors, and run your session with full hands-free control. Whether you're boxing, lifting, running, or stretching, IntervalGuide adapts to your routine, not the other way around.

🥊 HANDS-FREE CONTROL
Shake your phone to pause or resume — no need to remove your gloves, stop your set, or fumble with your screen. Perfect for boxing, kettlebells, winter runs, or any workout where touching your phone isn't an option.

⏱️ FULLY CUSTOMIZABLE TIMERS
Build workouts your way:
• Create unlimited interval blocks with custom durations
• Set work, rest, and preparation phases
• Add rounds and repeats to any block
• Assign colors to visually distinguish each phase
• Save and reuse your favorite workouts

❤️ REAL-TIME HEART RATE
Connect your heart rate monitor and train in the right zone:
• Polar sensors supported out of the box
• Generic Bluetooth Low Energy (BLE) heart rate devices
• Live HR display during workouts
• Customizable heart rate zones

🔊 AUDIO & HAPTIC CUES
Stay focused without watching your screen:
• Voice announcements for phase changes
• Boxing bell and other sound effects
• Vibration alerts to keep you on track
• Works with headphones and speakers

⌚ WEAR OS COMPANION
Control your workout from your wrist:
• Start, pause, and stop from your watch
• See timer and heart rate at a glance
• Full data sync between phone and watch

📊 WORKOUT HISTORY
Track your progress over time:
• Automatic session logging
• Review past workouts with full details
• Heart rate data for every session

🎯 BUILT FOR REAL TRAINING
No bloat, no social features, no accounts required. Just a powerful, reliable interval timer that runs in the foreground and never quits on you mid-workout.

Works great for:
• Boxing & MMA rounds
• HIIT & Tabata
• Strength training rest periods
• Yoga & stretching flows
• Running intervals
• CrossFit-style WODs
• Physical therapy exercises

Download IntervalGuide and build the interval timer that fits your training — not someone else's.

What’s new

IntervalGuide - your smart interval timer with heart rate zones.

Create custom interval workouts with multiple blocks and loops
Real-time heart rate monitoring via Bluetooth (Polar, generic BLE)
Galaxy Watch companion: heart rate streaming directly from your wrist
Voice announcements for block changes, countdowns, and heart rate
Workout history with detailed session stats
Customizable HR zones with visual feedback
English and German language support