속도계는 우리가 여행하는 속도를 아는 데 도움이됩니다.
Speedometer helps to know the speed in which we are travelling. You can use this app when you are walking, running and travelling in vehicle. Check out the speed and you can gradually increase and decrease. The app will take some time to analyze the speed. This app wont show the speed if you are shaking your phone in your place. Check out how speed are you running. Download the app now.