You can use this fully supported version of the analytics iApp template to marshal statistical and logging data from the BIG-IP system. The iApp takes this data and formats it as a JSON object which is then exported for consumption by data consumers, such as F5 BIG-IQ or applications such as Splunk.
The Analytics iApp allows you to configure several categories of data to be exported. For data consumers like Splunk, the iApp lets you configure the network endpoint to which the data is sent.
While this version of the iApp is nearly identical to the v3.6.13 which was available on this page, the major difference (other than being fully supported) is that ability to gather APM statistics using the iApp has been removed from BIG-IP versions prior to 12.0.