Calendar & List Views
Switch between calendar and list layouts to see your weekly training load. View sport icons, intensity colors, and jump to any day.
What you can do with ZonePace
Mobile Workout Editor
Edit workout intervals, adjust targets, or add notes from your phone. Uses the same Markdown format as the Intervals.icu web app.
Workout Library
Browse workouts by sport, search by name, and add them to your plan with one tap. Useful when you need to fill a gap in your schedule.
Training Load & Readiness
View your current form score based on training load, sleep, and HRV. Helps you decide whether to push hard or take it easy today.
Screenshots
Short demo of onboarding, a workout, and weekly planning.
Resources
Explore Workouts & Learn the Format
Browse pre-built workouts and learn how to create your own using the Intervals.icu format
Workout Library
Browse our collection of pre-built cycling and running workouts. From sweet spot intervals to VO2 max sessions, find structured workouts ready to add to your training plan.
View Workouts →Workout Format Guide
Learn the Intervals.icu workout format syntax. Understand how to write structured workouts with time, distance, intensity, ramps, and repeats.
Read Documentation →
Why Use ZonePace
Mobile app vs. mobile browser
The Intervals.icu website works on mobile browsers, but it wasn't designed for phone screens. ZonePace gives you a proper mobile interface.
Native Android UI
Designed for phone screens, not desktop browsers
Works offline
View cached workouts without internet
Faster navigation
No page reloads or browser lag
Pricing
Free to use
No credit card required
Free
$0
All features included
- Workout sync with Intervals.icu
- Calendar & list views
- Workout editing
- Workout library access
- Training load & readiness
- Encrypted storage
May add paid features later. Current features stay free.
Frequently Asked Questions
What is ZonePace?
ZonePace is a native Android app that connects to your Intervals.icu account, allowing you to view, edit, and manage your structured training workouts on your mobile device.
Do I need an Intervals.icu account?
Yes, ZonePace requires an active Intervals.icu account. The app syncs with your Intervals.icu data to display your workouts and training plan.
Which platforms are supported?
Currently available: Android devices running Android 7.0 (API level 24) or higher—covering 95%+ of active Android devices.
iOS support: Not currently planned. ZonePace is a solo developer project focused on delivering the best Android experience first. Building and maintaining an iOS version requires significant additional resources (separate codebase, Apple Developer fees, App Store review process, ongoing maintenance).
Future roadmap: If there's significant user demand and the project grows, iOS may be considered. For now, iOS users can continue using the Intervals.icu web interface, which works well on mobile Safari.
How much does it cost?
Free. No credit card required.
May add paid features later, but current features stay free.
Is my data secure?
Yes. ZonePace stores your authentication tokens encrypted on your device using SafeBox. All communication with Intervals.icu uses HTTPS. We don't collect analytics or share your data with third parties. See our privacy policy for details.
Can I edit workouts offline?
ZonePace requires an internet connection to sync with Intervals.icu. Offline editing is not currently supported, but may be added in future versions.
Where can I report bugs or request features?
You can open issues on our GitHub repository or contact the maintainers directly through the project tracker.
Is ZonePace open source?
No, ZonePace is currently a commercial software. This may change in the future.
Download ZonePace
Get the Android app on Google Play.