價格：免費
檔案大小：40.2 MB
版本需求：系統需求：iOS 12.0 或以後版本。相容裝置：iPhone、iPad、iPod touch。
Radius is an activity building app where you go out into the Actual World™ and record your activities, share them with friends, or compete in races while your friends and family spectate in real time.
CAPTURE - Radius can capture an activity you do in real time, plotting the course while monitoring speed, position and altitude changes.
COMPETE - Radius is teaming up with your favorite race promoters to augment your race with a little more competition, make spectating easier, and keep you safe by allowing race promoters to watch for participants who wander off course.
