VT Check App vs TrainCurve

VT Check helps endurance athletes identify their exercise intensity during workouts using real-time respiratory and heart rate analytics based on physiological studies and statistical modeling. HOW IT WORKS 1. Connect a respiratory sensor or heart rate monitor to your device 2. Perform workouts with real-time intensity feedback 3. Review detailed analysis on the web dashboard at vtcheck.com KEY FEATURES - Real-time zone detection with color-coded gauge (green/yellow/red) - Customizable workout templates (create on web, sync to phone and watch) - Automatic calibration that improves from your workout history - Drift analysis to verify metabolic stability - Multi-device sync between phone, watch, and web dashboard

Understand your training load and recovery with TrainCurve for iPhone and Apple Watch. Built for cyclists, runners and triathletes who want to make training decisions using their own data. TRAINING LOAD, EXPLAINED Follow CTL, ATL and TSB to track fitness, fatigue and form. Review training trends and heart-rate zones. RECOVERY IN CONTEXT Review sleep, HRV and resting heart rate using available Apple Health data. These metrics are wellness estimates. TRAIN WITH APPLE WATCH Record sessions on your watch and follow live workouts on your iPhone. Log strength exercises, sets, reps and weights. COACHING WITH YOUR DATA Connect a supported AI provider. API usage is billed by the provider separately from consumer subscriptions. Account connections, where available, remain subject to provider limits. TrainCurve adds no per-token markup. YOUR TRAINING DATA Import workouts from Apple Health and follow your progress. The TrainCurve core is open source: github.com/EVMCOD/traincurve-core. Free download with in-app purchases. Check your account for plan features and limits, and App Store for purchase terms. Terms: https://traincurve.com/terms Privacy: https://traincurve.com/privacy