How it works
V.Runner builds this week from your running and recovery in Apple Health, then sends pace bands to Apple Watch. These pages explain the loop without the training-science detail.
Choose a direction
Train for a booked race, work toward a target time without a race date, or choose Improve to build fitness in six-week blocks. Your recent fitness sets today’s pace bands.
Keep learning from your running
Completed runs add pace, heart-rate, distance and training-load evidence. Morning check-ins and post-run feedback add how your body and mind feel, and whether the session felt too hard or too long.
Available sleep, resting heart-rate and HRV trends, plus daily activity, help put that work in context. The app compares signals with your own recent baseline. Missing or stale readings remain unknown. As new information arrives, it reassesses the next steps; proposed changes that need approval stay yours to review.
Run with a pace range
V.Runner creates easy runs, long runs, threshold sessions and intervals with pace targets for the running steps. Send the workout to Apple’s Workout app, start it on your Watch, and follow the session there. After syncing, your completed run and feedback contribute to the next training decisions. Targets are refined for future training, not rewritten live on your Watch.
Science, AI and simulated training
Training science supplies the planning rules. AI coaching helps explain sessions and proposes adjustments for review. We test training choices in simulated running scenarios to examine how plans respond as training and recovery change.
The personal forecasting system is built and being evaluated before rollout. It compares possible training paths using your completed training, considering how much work to plan and how sessions fit together. Automatic updates from these forecasts are not yet active in the beta. Pace guidance also develops from your training history through the existing planning process.
These forecasts explore possible responses to training. They do not predict your race result, and a new simulation is not required after every run. Current and accepted workouts remain subject to the app’s planning and approval rules.
Review your data choices
Apple Health permission lets the app read data on your iPhone. Cloud backup with Sign in with Apple is required for coaching. One required AI-coach approval covers cloud coaching, personal training updates and de-identified improvement sharing. Crash reports remain a separate optional choice, off by default.
Withdrawing approval or turning backup off pauses normal use; export and deletion remain accessible. A temporary cloud outage with valid approval can leave your saved on-device plan available. See what is processed.
Explore the training loop
- Apple Health and overnight recovery — What recent running and optional overnight readings contribute to your plan.
- How the week is built — Easy, long, tempo, and interval sessions. A starting point from recent months, then work that grows gradually.
- Running plans on Apple Watch — Send prepared sessions to Apple’s Workout app, check delivery and follow your pace targets.