Stepfone is an amazing app using the built-in Step counter / pedometer of the new Nexus 5, Samsung Galaxy S4/S5 & LG G2/G3 under Kitkat. No battery draining compared to other pedometer applications.
Stepfone compute your step number, distance and burnt calories even when your screen is switched off !
You can share your activity with other users all around the world. Feel free to join the stepfone community !