Meet Your Hybrid Training Goals.
Strength and Endurance combined with strain and recovery science to give you the perfect guidance.
Free to download · iOS only · No credit card required
Stop Guessing. Start Training Smart.
Hybrid athletes face unique challenges that generic fitness apps simply don't solve. HYX was built specifically for you.
Afraid to overtrain?
You killed legs on Monday, now you want to run Wednesday. But how sore is too sore? Generic apps have no idea.
Juggling two apps?
Your strength tracker doesn't talk to your running tracker. You end up guessing whether to push or rest.
Plateauing despite hard work?
Without muscle-specific recovery data, you can't tell if you're adapting or just accumulating fatigue.
The HYX Solution
One app. Every metric. Zero guesswork.
HYX analyzes your muscle strain from every workout — strength and endurance — and tells you exactly when each muscle group is ready to train again. Science replaces guesswork.
Everything in one app
Features built for hybrid athletes
WOD Tracking
Log any workout — lifts, runs, rows, bike — with sets, reps, pace, and distance in one unified log.
AI Coach
Your personal AI training coach adapts your plan daily based on recovery, strain history, and your goals.
Muscle Strain IntelligenceUnique
Know exactly which muscles are loaded, recovering, or ready to train. Never second-guess a session.
Recovery Score
A daily 0-100 score synthesizing muscle readiness, sleep, and training load so you train at the right intensity.
Weekly Goal Rings
Visual strength and endurance rings keep weekly training balance on track — like Apple Fitness for hybrid athletes.
Habit Tracker
Build non-negotiable daily habits — mobility, nutrition, sleep — that compound into elite performance.
on the App Store
Join thousands of hybrid athletes
“HYX is the only app that understands I'm both a powerlifter and an ultra runner. The muscle strain view is a game-changer — I actually know when to push and when to back off.”
Marcus T.
Powerlifter + Ultra Runner
“I've tried every app. HYX is the first one that doesn't treat strength and cardio as separate universes. My recovery score is genuinely useful every single morning.”
Sarah K.
CrossFit Athlete
“The AI coach adapts my plan around my muscle readiness. It sounds simple but no other app does this. I PR'd my half marathon while still hitting my lifts.”
Diego R.
Triathlete + HYROX
The honest comparison
Why HYX over Whoop?
Whoop is great for recovery data. But it doesn't know what you lifted, which muscles are strained, or how to program your next workout. HYX does all of that — and it's free to start.
Comparison based on publicly available features as of 2025.
Simple pricing
Start free. Upgrade when you're ready.
HYX is free to download with no credit card required. The core training tools are free forever.
Free
Everything you need to start training smarter.
- WOD & workout logging
- Recovery Score (daily)
- Muscle Strain Index
- Goal Rings
- Habit Tracker
Pro Monthly
Unlock your full potential with AI coaching.
- Everything in Free
- AI Coach (adaptive programs)
- Advanced strain analytics
- Priority support
- Workout history export
Pro Annual
Save 64%The best value for serious hybrid athletes.
- Everything in Pro Monthly
- Locked-in annual rate
- Early access to new features
- VIP community access
All plans include a 7-day free trial of Pro features. Cancel anytime.
Latest from the blog
Training science, simplified.
January 1, 1970
Essential Fitness Tips Every Beginner Should Know in 2025
Kickstart your fitness journey with expert-backed tips that actually work for real beginners.
January 1, 1970
How to Increase Running Speed: A Science-Backed Guide
Proven strategies to help you run faster, from interval training to smarter recovery habits.
January 1, 1970
What Is VO2 Max? The Ultimate Guide to Your Aerobic Ceiling
VO2 max measures your body's peak oxygen use — here's why every athlete should care about it.
Start your hybrid journey today.
Free to download. No credit card. Join thousands of athletes already training smarter with HYX.