Train Smarter, Run Faster
Privacy-first iOS app with scientific running performance metrics, personalized training zones, and comprehensive performance tracking. All processed locally on your iPhone with complete data privacy.
✓ 7-day free trial ✓ No account required ✓ 100% local data
Advanced Running Performance Metrics
Professional-grade running analytics designed for runners at every level
Scientific Running Metrics
Critical Running Speed (CRS) determines your aerobic threshold, enabling Training Stress Score (TSS) calculation and CTL/ATL/TSB performance tracking based on proven sports science research.
Personalized Training Zones
7 personalized running training zones calibrated to your critical running speed. Optimize every workout for recovery, aerobic development, threshold training, or VO₂max improvement.
Performance Comparisons
Weekly, monthly, and yearly period comparisons with automatic trend detection and percentage changes for all running performance metrics.
Complete Privacy Protection
All running data processed locally on your iOS device. No servers, no cloud storage, no tracking. You own and control your running analytics completely.
Export Anywhere
Export workouts and running performance metrics in JSON, CSV, HTML, or PDF formats. Compatible with coaches, spreadsheets, and training platforms.
Instant Performance
Sub-0.35s app launch with local-first architecture. View your running analytics instantly without waiting for syncs or downloads.
See Run Analytics in Action
Beautiful, intuitive iOS interface designed for runners
Workouts Overview
Kilometer-by-Kilometer Analysis
Advanced Performance Metrics
Performance Trends
Training Zones
Export Options
Science-Based Running Efficiency Metrics
Run Analytics transforms raw running data into actionable running performance metrics using training stress score, critical running speed, and efficiency calculations validated by sports science research
CRS
Critical Running Speed - your aerobic threshold pace
TSS
Training Stress Score quantifies workout intensity
CTL
Chronic Training Load - 42-day rolling average
ATL
Acute Training Load - 7-day rolling average
TSB
Training Stress Balance indicates readiness
Running Efficiency
Stride efficiency score - lower is better
7 Zones
Recovery to Sprint intensity levels
PRs
Automatic personal record tracking
Simple, Transparent Pricing
Start with a 7-day free trial. Cancel anytime.
Monthly
7-day free trial
- Unlimited workout sync
- All scientific metrics (CRS, TSS, CTL/ATL/TSB)
- 7 personalized training zones
- Weekly, monthly & yearly comparisons
- Export in JSON, CSV, HTML & PDF
- 100% privacy, local data
- All future updates
Annual
Save €8.88/year (18% off)
- Unlimited workout sync
- All scientific metrics (CRS, TSS, CTL/ATL/TSB)
- 7 personalized training zones
- Weekly, monthly & yearly comparisons
- Export in JSON, CSV, HTML & PDF
- 100% privacy, local data
- All future updates
- Only €3.25/month
Privacy-First Running Analytics for Serious Athletes
Professional running performance metrics without the complexity
CRS Test Protocol
Integrated 5K + 3K test protocol to determine your critical running speed. Repeat every 6-8 weeks to track progress and automatically adjust running training zones.
Native iOS Running App
Built with SwiftUI for smooth performance and iOS integration. Perfect sync with Health app for running analytics, widget support, and familiar Apple design language.
Research-Based Metrics
All metrics based on peer-reviewed scientific research. CRS from Wakayoshi et al., TSS adapted for running with IF³ formula, proven CTL/ATL models.
Coach-Friendly Reports
Export detailed reports for coaches. Share HTML summaries by email, CSV for spreadsheet analysis, or PDF for training logs and records.
Works Everywhere
Track or trail, sprints or distance. Run Analytics adapts running efficiency metrics to all types of running and automatically detects workout characteristics.
Always Improving
Regular updates with new running performance features based on user feedback. Recent additions include annual comparisons, personal record tracking, and enhanced export options.
Frequently Asked Questions
How does this running analytics app get my data?
Run Analytics syncs with Apple Health to import running workouts recorded by any compatible device or app. This includes smart watches, fitness trackers, and manual entries. The app processes this data locally to calculate advanced running performance metrics.
What is the critical running speed test and how do I perform it?
Critical running speed (CRS) is a scientific protocol using 2 maximum effort runs: 5K and 3K with 10-20 minutes rest between. The app calculates your aerobic threshold from these times and automatically adjusts all running training zones. Repeat every 6-8 weeks to track progress.
Is my running data uploaded to the cloud?
No. Run Analytics processes all running data locally on your iPhone. There are no external servers, no cloud accounts, no data transfers. You control exports: generate JSON, CSV, HTML, or PDF files with your running performance metrics and share them however you want.
Can I use this running analytics app for trail running?
Yes. Run Analytics works with any running workout in Apple Health, including trail running. The app adapts running efficiency metrics to available data whether you're on track or trail, providing relevant performance analysis for each environment.
What's the difference between monthly and annual plans?
Both plans offer identical features: all running performance metrics, unlimited training zones, temporal comparisons, multiple exports, and free updates. The only difference is price: annual saves 18% (equivalent to €3.25/month vs €3.99/month).
Can I cancel my subscription anytime?
Yes. Subscriptions are managed through the App Store, so you can cancel anytime from Settings → [Your Name] → Subscriptions. If you cancel, you'll maintain access until the end of your current billing period.
Ready to Transform Your Running Performance?
Join thousands of runners using scientific running analytics to improve performance. Start your 7-day free trial of this privacy-first iOS running app today.
Learn More About Running Performance Metrics
Dive deeper into the science behind running analytics
Critical Running Speed
Understand how critical running speed determines your aerobic threshold and why it's crucial for structured training.
Learn about CRS →Training Stress Score
Discover how TSS, CTL, ATL, and TSB help you balance training stress, manage fatigue, and optimize performance.
Explore TSS →Training Zones Explained
Complete guide to the 5 training zones: recovery, aerobic, tempo, threshold, and VO2max for optimal training.
View Training Zones →What is VO2max?
Learn about VO2max, how to test it, average values by age, and proven methods to improve your aerobic capacity.
Understand VO2max →Marathon Periodization
Master training phases: base building, build, peak, and taper for marathon success with science-based planning.
Plan Your Training →80/20 Training Rule
Discover the proven 80% easy, 20% hard intensity distribution used by elite runners for optimal results.
Learn 80/20 →