Runnin Tool

Runnin Tool is a simple running toolkit for everyday training and race day planning. Calculate pace, time and distance, convert treadmill speed, plan race pacing, create split tables, estimate results, calculate interval times, heart-rate zones, fueling and a pace band. The app works in Polish and English, supports kilometers and miles, and saves selected actions, personal records and your next race locally on your device. No account. No backend. No unnecessary tracking.