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Flux Run
AI running coach that plans, talks and adapts to you
An AI running coach app for iPhone, Apple Watch and Android that builds adaptive weekly training plans, provides voice guidance during runs, and adjusts plans
About

Flux Run is an AI running coach app designed for beginners and improving runners on iPhone, Apple Watch and Android. It builds personalized weekly training plans for goals ranging from 5K to marathon, providing voice guidance during every run and adapting the plan after each session based on your performance and how you felt.
The app tracks distance, pace, time and route with GPS accuracy, and includes elevation data, per-kilometer splits, auto-pause and auto-resume capabilities. It features progress tracking with weekly comparisons, run history in list and calendar views, predicted race times, achievements and streaks.
Flux Run offers free run tracking and history with streaks, challenges and leaderboards. The AI coach is available through Basic and Pro subscriptions, with a 7-day free trial for new accounts. The app supports 39 languages, works with Apple Health and Health Connect, and includes an Apple Watch app with heart rate monitoring.
Features at a glance
- Builds personalized weekly training plan for goals from 5K to marathon
- Adapts training plan after each run based on performance and how you felt
- GPS tracking with distance, pace, time, route and elevation data
- Live pace guidance with vibration alerts
- Apple Watch app with heart rate monitoring
- Voice updates at every kilometer or mile
- Syncs to Apple Health or Health Connect automatically
- Progress tracking with weekly comparisons and streak maintenance
- Predicted race times for 5K, 10K, half marathon and marathon
- Weekly leaderboard and community challenges
Pricing
Pricing model: Freemium
Free: Run tracking, history, streaks, challenges and leaderboards. Basic: Adds AI running coach. Pro: Full AI coach, advanced run stats and splits, weekly streak freeze, CSV export, no ads. New accounts get 7-day free trial. Prices shown in app.
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Quick answers
- Is Flux Run free?
- Run tracking, history, streaks, challenges and leaderboards are free. The AI coach is part of Basic and Pro plans, with a 1-week free trial for new accounts in most countries, then a monthly or yearly subscription.
- How does the AI coach build the training plan?
- It starts from your actual run history and your goal, either a target pace over a distance or a distance to reach plus a timeframe. After each run, it checks your training load and how you felt, then plans the next session as easy, tempo, long or recovery.
- Does Flux Run work with Apple Watch?
- Yes. There is a native Apple Watch app with heart rate monitoring, and runs sync automatically from the watch to the phone. Runs are also saved to Apple Health.
- Does Flux Run work with Garmin or other watches?
- Runs recorded on other watches can be imported through Apple Health on iPhone or Health Connect on Android.
- What is Flux Run?
- Flux Run is an AI running coach app for beginners and improving runners, on iPhone, Apple Watch and Android. It builds a weekly training plan for your goal (first 5K to marathon), talks you through every run, and adapts the plan after each run.
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Flux Run has a free listing. The owner can unlock the full profile with a paid launch for $5:
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