Zetra: AI Running Coach & Plan
Live Voice Training on Watch
Free · In‑App Purchases
Run smarter with a live AI coach in your ear. Real-time voice cues based on your heart rate, pace, and effort. Free 7-day trial — just press start.
The world's first AI coach that talks to you mid-run. Real-time voice coaching through your AirPods, based on your live heart rate. It's like running with a coach who knows your body better than you do — start your free 7-day trial.
While other apps just track your run and send you a static training plan, Zetra adapts every cue to what's happening right now. When your heart rate spikes, your coach eases you back. When you're cruising, your coach pushes. When you're fading, your coach protects you.
YOUR COACH ADAPTS IN REAL TIME
Every cue is personalized to your goal, your fitness level, and the exact moment you're in. No two coaching sessions are the same — because no two runs are the same.
• Live voice coaching through AirPods, every step
• Real-time heart rate, pace, and effort analysis on Apple Watch
• Personalized to 126 different runner profiles — from couch-to-5K to marathon
• Form cues mid-run: cadence, breathing, posture, stride
• Adapts to weather, recovery, and how your body actually feels today
WHO ZETRA IS FOR
• New runners who want a coach in their ear, not just a stopwatch
• Returning runners rebuilding base fitness without overdoing it
• Half marathon and marathon trainees who can't afford a $200/hour coach
• Apple Watch + AirPods users who want their gear to actually coach them
WHY VOICE COACHING CHANGES EVERYTHING
Looking at your watch mid-run breaks your rhythm. A voice in your ear doesn't. When the coach says "ease up — you're in zone 4 on an easy day," you adjust without thinking. That's how real coaches train you. Zetra brings that experience to every run.
WHAT YOU GET
• Live voice coaching on every run
• Personalized training plans for 5K, 10K, half marathon, marathon
• Heart rate zone training that actually adapts day-by-day
• Detailed post-run analysis — effort, drift, recovery
• Apple Watch standalone mode (leave your phone at home)
• AirPods integration for crystal-clear coaching outdoors
PRICING & FREE TRIAL
Start with a 7-day free trial. After that:
• $2.49/week
• $9.99/month
• $59.99/year (best value — under $5/month)
Cancel anytime. Subscriptions auto-renew unless turned off in your Apple ID settings.
REQUIREMENTS
iPhone running iOS 17+ and Apple Watch running watchOS 10+. AirPods or any Bluetooth audio device recommended for the live coaching experience.
SUPPORT & FEEDBACK
We're a small team building Zetra full time. Email support@zetra.run with feedback or questions — we read every message and ship updates weekly.
Privacy policy: https://zetra.run/privacy
Terms: https://zetra.run/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
NEW IN THIS RELEASE
• Now you can talk to your coach!
• Faster real-time heart rate detection during interval workouts
• Improved voice clarity for outdoor noise (wind, traffic, headphones-out moments)
• Smoother Apple Watch sync after long runs and lost-signal recovery
• Bug fixes around session save and post-run summary display
Keep running. We're listening.
— The Zetra Team
The developer, GlobalBit Soft LTD, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Contact Info
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- GlobalBit Soft LTD
- Size
- 118.8 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Apple Watch
Requires watchOS 9.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Zetra Running Coach Monthly $9.99
- Zetra Running Coach Annual $79.99
- Weekly Plan $3.99
- Copyright
- © Vadim Fainshtein