# WattLog.pro > Indoor cycling training software for cyclists who want to understand their data — not just log it. WattLog.pro is a macOS app that connects to Bluetooth Smart (BLE) smart trainers and heart rate monitors. It records power, heart rate and cadence during indoor sessions and provides automatic post-ride analysis with plain-English explanations of every metric. ## What it does - **Live session tracking**: Power (W), heart rate (bpm), cadence (RPM), current power zone and interval timer visible in the macOS menu bar — no window required - **Post-ride analysis**: Weighted Average Power (WAP), Relative Intensity (RI), Training Load Score (TLS), cardiac drift %, time-in-zone breakdown, power PRs - **Performance Management Chart (PMC)**: Chronic Training Load (CTL), Acute Training Load (ATL), Training Stress Balance (TSB) across weeks - **FTP detection**: Automatically estimated from real ride data using Coggan 7-zone power model - **HRV readiness score**: Daily readiness based on heart rate variability - **Data export**: TCX and FIT export — no lock-in ## Compatible hardware - Any Bluetooth Smart (BLE) smart trainer: Wahoo KICKR, Tacx NEO, Elite Suito, Saris H3, and others - Any Bluetooth Smart heart rate monitor: Garmin HRM-Pro, Polar H10, Wahoo TICKR ## Pricing - **Founding Rider**: Free forever — first 10 riders who join get lifetime access - **Solo Rider**: €4/month (coming soon) - **Coach**: €12/month — up to 10 athletes (coming soon) ## Platform - macOS 10.14.4 (Mojave) and above - Windows and Linux: on the roadmap - Web interface runs in any modern browser ## Links - Homepage: https://wattlog.pro/ - Features: https://wattlog.pro/features.html - Training plans: https://wattlog.pro/training-plans.html - Compatible trainers: https://wattlog.pro/compatible-trainers.html - Privacy Policy: https://wattlog.pro/privacy.html - Terms of Service: https://wattlog.pro/terms.html - Contact: contact@wattlog.pro