An application management apparatus for controlling tasks, including a task split and response merge circuit configured to divide an application into a plurality of tasks and associate respective Key Performance Indicator (KPI) attributes to the plurality of tasks; and a task management circuit configured to allocate each of the plurality of tasks to a first or second Radio Access Technology (RAT) based on the KPI attributes, and to derive a plurality of task responses from the first or second RATs to which the respective plurality of tasks are allocated, wherein the task split and response merge circuit is further configured to merge the task responses to select the first or second RAT to run the application.