Gym Codex vs WattLog.pro Indoor Cycling

Build the perfect plan Create routines tailored to any training style and muscle group. Choose exercises, sets, reps, weights and rest times. Your plans are saved locally, always ready to use. Execute and track every set Start a session and log weights, reps and RPE in real time. Built-in timer, set-by-set history, and instant visual feedback on your progress. Watch your progress take shape Stats on sessions, volume, average duration, frequency and max loads. Compare periods, spot weaknesses and celebrate PRs. Explore, search and see how it's done A constantly growing exercise library. Filter by muscle group and add your own custom exercises. Watch an explanatory video for each exercise — without ever leaving the app. No sign-up required Download and go. Zero accounts, zero emails, zero spam. 100% free No subscriptions, no premium tier. Every feature is included. Local data Your data stays on your device. No cloud, no external servers. Export to JSON Your data is yours. Export everything to JSON whenever you want. Multilingual Available in 5 languages: Italian, English, German, French and Spanish. Customizable themes The app offers numerous themes and accent colours to suit every occasion.

Wattlog takes control of resistance automatically in ERG mode, so you focus on pedalling — not adjusting the trainer. **Structured Workouts** Follow interval workouts with target power zones, audio cues, and real-time coaching. Wattlog controls your trainer watt by watt — hitting 280 W means hitting 280 W, not somewhere close. **Route Simulation** Import GPX/TCX routes and ride them indoors. Wattlog adjusts resistance based on gradient, simulating the road feel of your favourite climbs. **Fitness Analytics** - Performance Management Chart (CTL, ATL, TSB) — know when to push and when to recover - FTP detection from your training history - Power zone distribution per session - Aerobic decoupling trend - Personal records and streak tracking **Training Plans** Build multi-week training plans with periodization — base, build, peak, and recovery blocks. Assign structured workouts to each day and follow the plan session by session. **Export Everywhere** Export sessions as TCX or FIT files for Strava, Garmin Connect, and TrainingPeaks. Your data stays yours. **No Subscription Required** Wattlog is a one-time purchase. All core features included — no locked analytics, no premium tiers. Compatible with KICKR, KICKR CORE, and any FTMS Bluetooth smart trainer. Requires a Bluetooth heart rate monitor for HR-based features. Strava, Garmin Connect and TrainingPeaks are trademarks of their respective owners. Wattlog is not affiliated with or endorsed by these companies. KICKR and KICKR CORE are trademarks of Wahoo Fitness.