Running Intervals & HIIT Coach

AI running coach that builds custom interval workouts in seconds. Describe a goal, paste a screenshot, or pick from 50+ HIIT, fartlek, tempo, and hill workouts. Full warm-up, main set, cooldown — runnable on Apple Watch.

> Ever found a great running workout online… but couldn't actually track it in your running app? Yeah — same here. So we built this app we wished existed.

> Running the same distance at the same pace every day doesn't make you faster. It just makes you better at running the same pace.

> Break the plateau. Get faster, stronger, and fitter with intervals, HIIT, fartlek, hills, and much more.

EVERY RUN IS A NEW CHALLENGE
Every workout here has a specific goal and a different feel — so you actually train different muscles, systems, and skills instead of just logging miles. Your running workout is fun now :)

Speed: 200m pops, ladders, strides, sprint finishers
Strength: Hill repeats, power builders, switchbacks
Stamina: HIIT, Cruise intervals, tempo waves, Yasso 800s
Endurance: Progressive aerobic, negative splits, scenic cruises
Fun: Fartlek games, stoplight play, music flow runs

Each workout has a warm-up, main set, and cooldown — with clear effort guidance through every phase.

AI WORKOUT GENERATOR
Tell the AI coach what you want — "30 minutes, hill repeats, moderate" or "a fartlek that doesn't bore me" — and get a runnable workout in seconds. Paste a screenshot of a workout you saw online and we'll convert it into intervals. Describe a goal and we'll build a plan around it.

TRAIN BY EFFORT, NOT NUMBERS
Every interval shows a target effort (80% for work, 30% for recovery). No heart rate monitor needed. GPS pace lies anyway — effort just works better.

AUTO-LAP BY DISTANCE OR TIME
Distance intervals auto-complete when you hit 200m, 400m, 800m, or whatever target you set. Time intervals count down with precision. No fumbling with lap buttons mid-stride.

AUDIO & HAPTIC CUES
Get notified at interval start, halfway, and end. Works with your screen off, works on Apple Watch. Built for running outside, where you can't keep glancing at a screen.

APPLE WATCH COMPANION
Run straight from your wrist. Leave your phone behind for track sessions — the Watch app handles everything on its own.

CLEAN, GET-OUT-OF-THE-WAY DESIGN
Big, glove-friendly controls. Dark mode. One-screen run view with your current interval front and center, and what's next right there too.

AFTER YOUR RUN
Review every completed interval — distance, time, pace. Auto-syncs to Apple Health.

WORKOUT TYPES

Open Run: Free running with manual laps
Tempo: Sustained-effort training
Intervals: Structured speed work
Fartlek: Mixed-pace playful running
Hills: Uphill repeat sessions
Long Run: Extended endurance efforts

3 DURATION OPTIONS

Quick (10–15 min): Short, sharp sessions
Standard (20–35 min): Complete workouts
Long (40–60+ min): Extended training

WHO IT'S FOR
- Runners looking to improve their times
- Runners who like variety and fun
- Amateur athletes who want to gain leg strength and power
- Anyone looking to improve overall fitness and health
- Anyone looking to lose weight with HIIT (High-Intensity Interval Training)
- Anyone who wants to run intervals without 10 minutes of setup
- Anyone tired of complex running apps that feel more like Instagram

No social feeds. No data mining. Just running.
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/