ERGasmic reads your vitals from HealthKit — resting heart rate, HRV, sleep, recovery — and uses AI to build the perfect structured workout for exactly how your body feels today.
ERGasmic's AI coach analyzes your recent rides, power curve, fatigue trends, and recovery state to recommend workouts that push you forward without pushing you over. Tell it your goals — build threshold, sharpen VO2max, recover actively — and it generates structured ERG sessions tailored to your current fitness.
I want to build my threshold but I'm still tired from Sunday's race.
Your HRV is 12% below baseline and resting HR is elevated. I've built a tempo session at 82-86% FTP with extended recovery valleys. You'll maintain aerobic stimulus without deepening fatigue.
Load it up.
ERGasmic pulls the data that matters from Apple Health — not just for display, but to fundamentally shape what training you should do right now. Bad sleep? Elevated resting HR? The AI adjusts intensity, duration, and recovery intervals before you clip in.
Tracked overnight. Elevated RHR signals incomplete recovery — the AI dials back intensity automatically.
Your nervous system's readiness score. Low HRV means endurance only. High HRV unlocks hard intervals.
Under 7 hours? Workout duration is capped and recovery blocks are extended to protect adaptation.
Composite score from RHR, HRV, sleep, and recent training load. The single number the AI weighs most.
Describe your goal in plain English. The AI builds a complete structured ERG workout with warm-up, intervals, and cooldown.
HealthKit vitals automatically adjust today's targets. No more guessing if you should go hard or take it easy.
Every step defined in percentage of FTP. Update your FTP once and all workouts adjust automatically.
AI analyzes your power duration curve across rides to estimate FTP changes without a dedicated test.
Connects via Bluetooth FTMS to control your trainer. Targets update at 1 Hz for perfectly smooth ramps.
Post-ride analysis with power curve trends, HR zone distribution, and AI-generated training insights over time.
Trainer drops out mid-ride? Auto-pause and reconnect. Resume right where you left off.
No account required. All health data stays on your device. Works without an internet connection.
Grant HealthKit access. ERGasmic reads resting HR, HRV, sleep, and activity — all processed on-device.
"Build my threshold" or "Easy recovery spin." The AI factors your readiness and generates a workout.
Connect your Tacx Neo or any FTMS smart trainer over Bluetooth. One tap to start.
Real-time telemetry, adaptive targets, and post-ride AI insights. Every session makes the next one better.