A running coach that knows you
AI-powered training plans, real-time coaching, and progress tracking — built around your body, your goals, your life.
Start training — it's freeNo credit card · No commitment · Cancel anytime
AI
Powered Coach
24/7
Available
5K–42K
Any Distance
What are you training for?
Whether it's your first 5K or a marathon PR, your plan is built for exactly where you are.
Everything a personal coach does — without the price tag
Real coaching intelligence, not a static PDF plan.
A coach that learns you
Every run teaches it more about your strengths, limits, and rhythm. Advice gets sharper over time.
Plans that flex with life
Missed a day? Feeling tired? Your plan adapts automatically — no guilt, no wasted weeks.
See what matters
Pace trends, heart rate zones, weekly load, streaks — the numbers that actually predict progress.
Ask anything, anytime
"Should I run today?" "Why does my knee hurt after long runs?" Your coach is always a message away.
Race-day ready
Countdown to your goal race with a periodized plan — base, build, peak, taper. Science-backed.
Injury-aware training
Tell your coach about limitations. It adjusts intensity and flags risky volume spikes before they happen.
From zero to race day in 4 steps
Tell us about yourself
Age, experience, goals, schedule — 2 minutes and your coach knows you.
Get your plan
A personalized 4-week training plan generated instantly by AI.
Run & log
Complete workouts, log your runs, and get instant feedback from your coach.
Watch yourself improve
Track progress week over week. New plan every 4 weeks as you level up.
Real runners. Real results.
From first-timers to marathon chasers — hear how Pace Builder fits into busy lives.
“I used to collapse on the couch after work. Now I run 30K a week and I have more energy at 9 PM than I used to have at noon. The plan just fit into my calendar — I never had to think about it.”
Daniel Eriksson
Product Manager, fintech
“Running became my therapy. Pace Builder didn't just give me a training plan — it gave me a daily anchor. On weeks I ran consistently, my focus in court was noticeably sharper.”
Aylin Korkmaz
Corporate Lawyer
“I'd tried Garmin Coach and two paid apps before this. The difference? This one actually adjusted when life got messy. After a brutal sprint cycle at work, it pulled back my plan instead of making me feel like I failed.”
Marcus Chen
Senior Software Engineer
“Honestly, I started running to manage anxiety. I didn't expect to get fast. Four months in, I ran my first 10K under 50 minutes and I'm sleeping better than I have in years.”
Sofia Nilsson
UX Lead at a design studio
Works on any device — no app download needed
Phone · Tablet · Desktop · Installable as an app (PWA)
One plan. Everything included.
No tiers, no upsells, no surprises.
Free while we're in beta. Early users keep a lifetime discount.
- ✓Unlimited AI coach conversations
- ✓4-week personalized training plans
- ✓Workout logging with AI feedback
- ✓Progress analytics & PR tracking
- ✓Streak tracking & achievement badges
- ✓Works on phone, tablet, and desktop
No credit card required
Questions? Answered.
How do I start running as a complete beginner?+
Pace Builder is built for beginners. Tell us your fitness level during onboarding and we'll create a personalized plan that starts from wherever you are — even if you've never run before. The AI adapts to your pace, schedule, and how you're feeling.
Is this really free? What's the catch?+
No catch — Pace Builder is 100% free during our beta period. No credit card, no hidden fees, no feature gates. When we launch paid plans, beta users will get a lifetime discount.
How is this different from other running apps like Strava or Nike Run Club?+
Most running apps track your runs but don't coach you. Pace Builder is an AI running coach that builds personalized training plans around your age, fitness, schedule, and heart rate zones. It adapts every week based on how you're actually performing — not a static PDF plan.
Can Pace Builder help me train for a 5K or marathon?+
Yes — from couch to 5K all the way to marathon training. Pick your goal distance during onboarding and the AI generates a periodized plan: base building, speed work, peak, and taper. It adjusts automatically if you miss days or need to change your schedule.
Do I need a smartwatch or running gear?+
No. Pace Builder works in any browser on any device — phone, tablet, or desktop. A smartwatch helps with heart rate data but it's completely optional. You can log runs manually and still get full AI coaching.
How does the AI coach help me stay motivated?+
Your AI coach sends daily workout reminders, celebrates your streaks, gives instant feedback after every run, and generates a weekly progress summary. Choose between data-driven coaching or encouragement-focused style — the coach adapts to what motivates you.
Running tips in your inbox
Weekly workouts, running science, and coaching tips — free.
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Your goal. Your plan. Your coach.
Stop training alone. Get a coach that adapts to you — not the other way around.
Start training — it's freeJoin the beta · No credit card · 2 minutes to start