23 Hours connects your wearables and gives you a daily readiness score, personalized nutrition targets, sweat-based hydration plans, and race performance predictions — in a single dashboard built for serious endurance athletes.
Connects with your devices
Most apps do one thing. 23 Hours connects the dots across recovery, nutrition, hydration, and performance so you stop guessing and start training with precision.
Your daily readiness score draws on HRV, resting HR, sleep stages, SpO₂, and respiratory rate — pulled automatically from every connected device. Know when to push and when to hold back before you lace up.
Calorie and macro targets that adjust to your actual training load — not generic formulas. Log food, track supplements, and see how your diet maps to your recovery and performance metrics.
Connect an hDrop sweat sensor or enter your data manually to build a personalized race-day hydration plan. Sodium concentration, fluid rate, and pre/post session weight are all accounted for.
Threshold zone testing plus VO₂ max data generates real race predictions and readiness evaluations. Know your target pace, not just your fitness score.
Designed for coached athletes
TrainingPeaks, HumanGO, and similar platforms tell your coach what workouts you hit. 23 Hours tells you — and your coach — why you hit them or didn't: sleep, fueling, hydration, and recovery status in one view.
Coaches can be added to your account to see your recovery and nutrition data alongside the training log they already have. No switching platforms. No double entry.
The alternatives do pieces. 23 Hours does the whole picture.
| Feature | 23 Hours | Whoop | Oura | Apple | Garmin |
|---|---|---|---|---|---|
| Multi-device sync | ✓ | 1 device each | ✓ | ✓ | |
| Nutrition tracking | ✓ | — | — | — | |
| Sweat / hydration plans | ✓ | — | — | — | |
| Race predictions | ✓ | — | Basic | — | |
| Coach access | ✓ | — | ✓ | — | |
| Daily readiness score | ✓ | ✓ | — | Partial | |
| Sleep analysis | ✓ | ✓ | — | ✓ | |
| Price / month | $19 | $30+ | $19+ | Device only |
Competitor pricing and features approximate as of 2026.
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