Crush your fitness goals.
Get a personalized plan, real progress tracking, intelligent sleep insights, and daily motivation. Zenther adapts to you, keeps you accountable, and helps you unlock your best shape.
No guesswork, just results.
Everything you need for
smart fitness tracking
Powerful features designed around your privacy and personalized for your fitness journey.
Privacy by Design
All processing happens on your device. Your workout data never leaves your phone.
Adaptive AI Coach
Learns your patterns and preferences to provide increasingly personalized guidance.
Sleep Intelligence
AI-powered insights from your sleep data. Get personalized recommendations for better recovery and performance.
Progress Tracking
Track your fitness progress with clear visualizations and insights.
Workout Analysis
Post-workout insights with heart rate analysis and performance suggestions.
Goal Tracking
Set and achieve fitness milestones with AI-powered progress predictions.
Seamless Integration
Works perfectly with Apple Health and your existing fitness routine.
Smart Sleep Insights
from your wearable device
Zenther analyzes your sleep data from any compatible device and provides personalized AI insights to help optimize your recovery and performance.
Sleep Stage Analysis
Visualize your REM, deep, and light sleep stages with detailed breakdowns and percentages.
Efficiency Metrics
Track sleep efficiency, bedtime consistency, and wake time patterns for better sleep hygiene.
Personalized Recommendations
Get AI-powered suggestions based on your sleep patterns to optimize recovery and performance.
Home Screen Widgets
View your sleep insights at a glance with beautiful, customizable widgets right on your home screen.
Get started in minutes
No complex setup, no questionnaires. Just download and start working out.
Download & Setup
Get Zenther from the App Store. Grant Health app permissions. Start your first workout.
AI Learns You
Our on-device AI analyzes your workout patterns, heart rate, and preferences privately.
Get Personalized Coaching
Receive tailored workout suggestions, post-workout analysis, and progress insights.