Run Analytics vs Lact8

Understand the runs you already record. Run Analytics brings pace, splits, training load and fitness trends together so you can follow your progress over time. NEW: ANALYSE YOUR TRAINING WITH AI Choose what to review (today's workout, your latest session against the previous one, this week or this month against the last) and the app turns your data into a professional prompt, in your language. One tap copies it and opens your AI assistant: just paste it into a new chat. ANALYSIS, NOT ANOTHER RECORDER Import running workouts from Apple Health or connect Garmin. Run Analytics analyzes the training you already complete, so you can keep using your current watch and recording routine. UNDERSTAND EVERY RUN • Pace, distance, duration, heart rate and calories • Split-by-split analysis with route context when available • Critical Pace estimation and personalized running zones • Running Training Stress Score (rTSS) • Fitness, fatigue and form trends (CTL, ATL and TSB) • Personal bests and best efforts by distance • Weekly, monthly and yearly progress views • CSV and JSON export TRAIN WITH CONTEXT See whether pace is improving at a similar heart rate, how recent sessions affect fatigue, and how your current form compares with previous weeks. Metrics are estimates based on your imported workout data; they are not coaching or medical advice. PRIVACY BY DESIGN Core analysis stays on your device. Optional Garmin sync sends workouts, heart rate, routes and identifiers to our servers. In Data sources you can withdraw consent and request deletion of active server data; local workouts remain. Details: https://analyticszone.app/en/run/privacy/ PREMIUM Start with a 7-day free trial. Monthly and annual plans unlock the full experience. Cancel anytime in App Store settings. Privacy Policy: https://run.analyticszone.app/en/privacy/ Terms of Use: https://run.analyticszone.app/en/terms/ IMPORTANT — MEDICAL DISCLAIMER Run Analytics is a wellness and sports-analysis app, not a medical device. It does not diagnose, treat or prevent disease. Consult a healthcare professional before making medical decisions or if you have concerning symptoms.

Lact8 helps athletes identify their lactate thresholds (LT1 and LT2) from step test data and calculate personalized training zones. Features: • Record lactate, heart rate, and power/pace from step tests • Automatic threshold detection using proven methods • Multiple zone systems (3-Zone, 7-Zone Touretski, 8-Zone Couzens) • Track threshold progression over time • Export data as CSV, JSON, or Markdown Perfect for cyclists, runners, and triathletes who want data-driven training zones based on their own physiology.