Lact8 vs RunNote

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.

You get better at what you reflect on. RunNote pulls your runs from Apple Health automatically, and an AI coach turns them into insights made for you. Your run log and diary — how you felt, the weather, your notes — are free. AI coaching is a Pro subscription, and the more you log, the better your coach knows you. YOUR RUNS, ORGANIZED FOR YOU - Auto-sync from Apple Health — run with your watch, then just open the app - Monthly calendar, km splits, 5 heart-rate zones, elevation and route - Personal records and streaks detected automatically A COACH THAT LEARNS YOU - Personalized analysis of every run — pace, heart rate, and your own notes together - Coach notes remember your condition, aches, and lessons over time - Weekly coaching that reviews last week's goals and sets the next ones - Ask the coach anything, and get a training plan built around you REASONS TO KEEP SHOWING UP - 5 runner levels and achievement badges with progress - Weekly and monthly goals with celebrations - Shoe mileage tracking, stretching and running-form guides AI features are part of RunNote Pro. New subscribers to the annual plan get a 7-day free trial (the monthly plan has no trial). Subscriptions renew automatically unless canceled at least 24 hours before the period ends, and can be managed anytime in your App Store account settings. Terms of Use: https://www.kkirukstudio.com/legal/terms/ Privacy Policy: https://www.kkirukstudio.com/legal/privacy/