Train with a plan.
Eat with purpose.
Improve with context.
FitNyx combines personalized workouts, nutrition guidance, progress tracking, and an AI coach that understands your training history, goals, and recent performance.
Launching soon on iOS & Android. Built for muscle gain, fat loss, and consistency.
Everything you need to
stay consistent
Personalized workout plans
Custom plans by goal and experience level.
AI coach with memory
Context-aware answers from your history.
Nutrition planning
Macros and diet direction that support your goal.
Progress insights
Volume, frequency, and body metrics.
Offline workout logging
Track sessions completely disconnected.
Recovery-aware guidance
Adapts to missed days and energy levels.
Most fitness apps track.
Very few guide.
Generic workout apps leave you with disconnected plans, shallow progress charts, and advice that forgets everything the moment you close the screen. FitNyx is built to feel like one connected system: your training, your nutrition, your trends, your context.
“Less guesswork. More momentum.”
How FitNyx works
Tell FitNyx about you
Goal, training experience, schedule, injuries, equipment access, and preferences.
Get a structure
A workout plan and nutrition direction that fits your real life.
Log your sessions
Record workouts, body metrics, and consistency over time.
Deploy the AI coach
Ask smarter questions based on your actual progress, not generic advice.
A coach that remembers everything
Long-lived fitness context. Recent training activity. Conversation history. FitNyx's AI coach gives answers that evolve with your progress.
- Context-aware across every session
- Progress-based responses, not generic advice
- Separate threads per goal or phase
- Fresh answers after new workouts logged
Structured training without the chaos
Build or follow plans that match your goal, track sessions with real exercise logs, and keep momentum even when life gets messy.
- Custom plans by goal and experience
- Session logging — sets, reps, weight
- Always know which day and exercise is next
- Offline-friendly, no internet needed
Nutrition that supports the goal
AI-assisted nutrition planning designed to support performance, recovery, and consistency — not random meal ideas.
- Goal-aware (bulk, cut, maintain)
- Diet preferences and restrictions
- Macro-conscious, not just calories
- Regenerate when your needs change
Progress you can actually understand
Session history, volume trends, body metrics, consistency scores — one connected view that shows what's actually working.
- Session history and frequency trends
- Volume progression week over week
- Weight and body metric tracking
- Performance snapshots by movement
Built for real life,
not perfect Wi-Fi
Train in the gym, at home, or on the move. FitNyx supports offline-friendly workout logging and sync-aware session handling so your progress does not disappear when your connection does.
Built for different goals
What athletes are saying
"Finally stayed consistent for more than 3 months. The AI coach actually remembers my history — it feels like talking to someone who knows my training."
"The nutrition planning is what sold me. It adapts to my preferences and ties into my workout plan. Nothing else does both."
"I travel constantly. The offline mode is a game changer — log in the gym, syncs at the hotel. Never lost a workout since."
Simple, transparent pricing
Start free. Upgrade when you're ready.
- Basic workout tracking
- Limited AI insights
- Progress overview
- 7-day history only
- No custom plans
- Full workout tracking
- Personalized workout plans
- AI Coach with memory
- Nutrition planning
- Progress analytics & trends
- Offline mode + cloud sync
- Unlimited history
- Everything in Pro
- Priority support
- Advanced analytics
- Early feature access
- Custom templates
- Export & reports
Cancel anytime · Secure payments · No hidden fees
Frequently asked questions
What the experience
feels like
Clean sessions. Focused tracking. Smarter guidance. A premium fitness app should feel calm, sharp, and useful every time you open it.
Be the first
to train smarter
FitNyx is launching soon. Pre-register now to get early access, launch pricing, and be part of the first wave.