Ready in one step
Connect Apple Health and your running history is ready to explore. No onboarding questionnaires, no manual data entry.
Run Signal Built by runners, for runners
Know your runs. Clear insight into your effort, recovery and progress.
Run Signal connects to Apple Health in a single step and turns every run into structured, meaningful analysis — from running form and recovery to performance modelling — explained in plain language by your AI Coach.
Requires iPhone and Apple Health. Best with runs recorded on Apple Watch.
Half Marathon PB · 1:51:27
Serious analysis, without the setup
Designed by passionate runners around one principle: your data should work for you, not the other way round.
Automatic by design
Every run is classified, grouped with comparable sessions and checked for personal bests and interval structure — without you lifting a finger.
Modelled from real results
VDOT, training paces and race predictions are derived from your actual performances, not self-reported estimates or fitness tests.
Insight, not just data
AI Coach summaries put each run, week and year in context, while clear daily-to-yearly views keep everything easy to navigate.
Run analysis
A granular view of every run
Explore each run on an interactive timeline and see how pace, heart rate and running form evolve from the first kilometre to the last.
- Pace, heart rate, cadence and elevation on a single timeline
- Running dynamics: vertical oscillation, ground contact time, stride length and power
- Per-kilometre splits and heart-rate zone distribution
- Route, conditions and an automatic session type for context
Interval analysis
Interval sessions, detected automatically
Work intervals and recoveries are identified without lap presses or pre-built workouts, then benchmarked against your history.
- Rep-by-rep pace, distance and heart rate
- Heart-rate zones calculated from work intervals only
- Comparison with your recent average and all-time best
- Interval pace progression over time
AI Coach
Context for every run
AI Coach turns your numbers into concise, plain-language insights after every run, every week and across the year.
- Highlights such as route records and efficiency gains
- Weekly and year-to-date training summaries
- Trends in pace, heart rate and aerobic efficiency
- Guidance on when to consolidate and when to build
Effort & recovery
Balance training with recovery
Follow the physiological markers that matter and understand whether your body is ready for the next demanding session.
- VO2 max trend, benchmarked for your age and sex
- HRV and resting heart rate against your personal 29-day baseline
- A daily recovery status
- Training load (acute:chronic workload ratio) with risk zones
Classification
Your training, organised automatically
Run Signal recognises the type of each session and groups comparable runs, so genuine progress is easy to see.
- Easy, long, tempo and interval runs classified automatically
- Comparable runs grouped by effort, distance and elevation
- Long-run and easy-run progression over time
- Weekly, monthly and yearly volume by heart-rate zone
Performance
Performance modelled from your results
VDOT, training paces and race predictions update automatically as you train, and every personal best is recorded for you.
- VDOT-based training paces: easy, tempo, threshold and interval
- Predicted times for 5K, 10K, half marathon and marathon
- Automatic personal bests with full progression history
- Badges and route records
Features at a glance
- One-step Apple Health sync
- AI Coach insights
- VDOT modelling
- Race-time predictions
- Personalised training paces
- Automatic run classification
- Comparable-run grouping
- Automatic interval detection
- Automatic personal bests
- Route records
- Interactive metrics timeline
- Per-km splits
- Heart-rate zones
- Cadence & stride length
- Vertical oscillation & ground contact time
- Running power
- VO2 max trend
- HRV & resting heart rate
- Daily recovery status
- Training load (ACWR)
- Daily to yearly summaries
- Shareable run summaries
Inside the app
Start understanding your running
Connect Apple Health and see your insights straight away. Try Run Signal Premium free for 7 days, then choose a monthly or yearly plan — one subscription covers the web and the iPhone app.