Fartlek vs Stride

Tell your AI coach your goal and the days you can run, and get a training plan that adapts every week to how your runs go. Need a single workout? Describe it or paste a screenshot, and it's ready in seconds. Then just run: voice and haptic cues guide every interval, even with your screen off. 25 workouts runners actually love — HIIT, fartlek, tempo, hills, Yasso 800s. On iPhone and Apple Watch. Because running the same pace every day only makes you better at running the same pace. Break the plateau. 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. 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 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/

Stride is the running app that keeps you healthy — not just a log of what you did. It combines fast daily tracking with an AI coach whose #1 job is preventing injury and building the consistency that actually makes you faster. TRACK IN SECONDS • Log runs in a few taps — distance, time, pace, workout type, and shoe • Automatic shoe mileage with replacement alerts before worn cushioning raises impact • Cross-training, plus a 10-second recovery journal (energy, soreness, sleep, notes) AN AI COACH THAT EXPLAINS ITSELF • Weekly insights from real training-load science (acute:chronic ratio, ramp rate, monotony) • Early warnings for sudden mileage jumps and recovery deficits — always with the evidence • Reads your journal over weeks to spot patterns like recurring calf tightness, and suggests targeted mobility, strength, and recovery routines • Educational guidance, never a medical diagnosis RUNNING FORM ANALYSIS • Record or import a clip and get on-device gait feedback — cadence, posture, vertical bounce, arm carriage, and symmetry • A skeleton overlay on your own video, with drills to work on • Track how your form changes over time FUEL FOR YOUR TRAINING • Daily calorie and macro targets that adjust to your mileage • Barcode scanner and food search • Under-fueling detection — important for runners who don't eat enough EVERYTHING ELSE • Beautiful dashboards: weekly/monthly mileage, training load, recovery trends, streaks, PRs • Connect Apple Health so watch runs (Garmin, COROS, Apple Watch) appear automatically • Invite a coach with granular privacy controls — you choose exactly what they see • Dark mode, offline logging, private by design Free forever for logging. Stride Premium unlocks the full AI coach, nutrition, and form analysis. Stride is for educational and training purposes only and is not a medical device. Terms of Use: https://maxscs25.github.io/Stride-Project/terms.html Privacy Policy: https://maxscs25.github.io/Stride-Project/privacy.html