Advanced Task Manager Pro v6.0.4 Patched
Requirements: 2.2 and up
Overview: Works on Android Lollipop 5.1.1 with latest system update (OTA update build LMY48I) !! Kill tasks, free memory, speed up phone, save battery life, 1 tap boost your phone.

Works on Android Lollipop 5.1.1... http://www.apkformod.com/advanced-task-manager-pro-v6-0-4-patched/