Interval Run app analytics for December 21

Interval Run guides you with vocal feedback through your interval exercise. Select a workout, tap 'Start' and focus on your exercise, not the watch. HIGHLIGHTS: * Spoken feedback to notify the user when to switch from walking to running (or 8 other types) * Tabata, Couch 2 5K, Gateway to 8K and One Hour Runner programs included. * Customizable intervals * The feedback is spoken over your music * Many different voices (coaches) available.