1stMarathon
AI Marathon Coach
Free · In‑App Purchases
Run Your First Marathon With a Coach Built for You
Training for 26.2 miles is hard.
Figuring out how to train shouldn’t be.
1stMarathon builds a fully personalized marathon plan around your fitness, schedule, and body and adapts as you improve.
Your AI coach analyzes your running background, mobility, equipment, and availability to create a plan that fits your real life.
- Miss a workout?
- Get sick?
- Feel pain coming on?
Your plan adjusts, scaling volume, adding recovery, and keeping you progressing safely.
Everything Programmed. Nothing Left to Guess.
- Daily structured runs with effort guidance
- Strength & mobility matched to your body
- Form drills targeting your running gait
- Built-in timers and haptic alerts
- Apple Watch support with live heart rate zones
Just show up and run.
Built on a Proven 4-Phase System
Base → Build → Peak → Taper
Arrive on race day confident, prepared, and injury-resilient.
Who It’s For?
- Anyone serious about their marathon goal.
- First-time marathoners.
- Returning runners.
- Anyone who wants real coaching — without the $500/month price tag.
Your marathon starts now.
Terms of Use: https://www.1stmarathon.com/terms
Privacy Policy: https://www.1stmarathon.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Runs prescribed by time with structured segments (intervals, tempo)
- Training approach chart showing your intensity distribution
- Milestone coaching notes at key training moments
- Smarter illness and pain adaptation
- Race week support
- Season stats cards and improved workout tracking
- Smoother Weekly Reflection: Post-run and post-strength mobility workouts no longer block the weekly reflection gate, so you can submit your reflection without manually completing/skipping supplementary sessions
Watch App:
-Morning HRV Check: Wake up, glance at your watch, and get a 60-second resting heart rate variability measurement. Computes RMSSD from beat-to-beat intervals, tracks a rolling 7-day baseline, and shows your recovery status (normal / slightly low / significantly low). When HRV drops significantly, the server automatically recomputes training load and adjusts remaining workouts for the week.
- Mobility & Drills: Complete mobility and drills routines directly on Apple Watch with auto-advancing timers, bilateral movement support, and circuit tracking
- Zone Score: Post-run summary now shows your zone score — percentage of work time spent in the target HR zone
- Auto-Pause: Runs auto-pause when motion stops; mobility and drills have manual pause/resume
The developer, Nico Olavi Nyberg, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Nico Olavi Nyberg
- Size
- 18.9 MB
- Category
- Sports
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Apple Watch
Requires watchOS 26.1 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- 6-Month Season Pass $54.99
- 7-Month Season Pass $63.99
- 12-Month Season Pass $108.99
- 11-Month Season Pass $99.99
- 10-Month Season Pass $90.99
- 9-Month Season Pass $81.99
- 5-Month Season Pass $44.99
- 8-Month Season Pass $72.99
- Monthly $12.99
- Copyright
- © Nico Nyberg, 2026