Ride. Run. Follow your plan.

Execute your Intervals.icu workouts on a Bluetooth smart trainer, on the treadmill or outdoors. Follow interval timers, live targets and voice cues, with no ZonePace subscription required.

Smart trainer control in ERG mode

Guided indoor and outdoor running

Bluetooth sensors and live feedback

Get it on Google Play

ZonePace 13:37

ZonePace executing a cycling interval with live power targets and a smart trainer

What you can do with ZonePace

Smart Trainer Workouts

Connect a compatible Bluetooth FTMS trainer. ZonePace adjusts resistance in ERG mode to follow your workout power targets. Use interval timers without a trainer when you prefer.

Visual Workout Editor

Adjust targets, add intervals, or modify sets effortlessly with our interactive visual editor. Prefer code? The Markdown editor is still there when you need it.

Treadmill & Outdoor Running

Follow timed intervals with voice cues indoors. A compatible Bluetooth running footpod provides treadmill pace and distance. Outdoors, use optional GPS for pace feedback and distance intervals. You control treadmill speed and incline.

Live Feedback & Workout Results

Pair compatible Bluetooth heart-rate, power and cadence sensors. Follow your targets, review interval results and export a FIT file or upload your activity to Intervals.icu.

Screenshots

Smart trainer intervals with automatic ERG power targets.

Guided running intervals with pace targets and workout controls.

ZonePace calendar view showing upcoming Intervals.icu workouts — Weekly calendar with sport icons, difficulty, and status.

Workout Library with search and sport filters to quickly pick a session — Workout Library: filter by sport, search, and add quickly.

ZonePace visual workout editor — Edit workouts visually with the interactive GUI, or switch to Markdown for advanced control.

Show your training load and form with freshness gauge including sleep. To know how ready you are for today's workout. — See how your current form will affect your next training.

Daily Readiness and Sleep Insight showing readiness score, inputs used (HR, HRV, Sleep), and 7‑day sleep trend — Daily Readiness & Sleep Insight with score and sleep trend.

Set your weekly plan at the top of your workout list — See your weekly planning pinned to the top.

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

Mobile browsers are great, but they aren't apps. ZonePace is built for your thumb, not a mouse.

Native Speed

Instant page loads, fluid animations, and zero lag.

Works Offline

Your plan is always with you, even in airplane mode.

Built for Touch

Buttons you can actually tap, and swipes that actually work.

Pricing

Free to use

No ZonePace subscription required

Free

All features included

Smart trainer ERG control
Guided running intervals and Bluetooth sensors
Workout recording and FIT export
Workout sync with Intervals.icu
Calendar & list views
Workout editing
Workout library access
Training load & readiness
Encrypted storage

Download

May add paid features later. Current features stay free.

Frequently Asked Questions

What is ZonePace?

ZonePace executes structured cycling and running workouts on Android with interval timers, voice cues and live targets. Connect a compatible smart trainer or running footpod, use GPS outdoors, and sync your workouts with Intervals.icu.

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.

Get it on Google Play