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Your workout app from runner to running community. Run Faster! is app designed for your Apple Watch® that guides you during 30-20-10 interval run.Setup"30sec + 20sec + 10sec = 1 interval I5 intervals = 1 repeat (2 mins relax between repeats) IX repeats = 1 run I1 week = min 1 run, ideally 2-3Runners who followed the training for just 7 weeks improved their 5K times by four percent!Please note: interval run works on Apple Watch® only, iOS app is used to review results and settings. Run Faster! uses HealthKit™ to export your workouts into the Health app and to read heart rate, biometric and distance data.