There are some situations when clients need customization of tracking and analysis. One is the client have some special tracking requirement but currently their tracking system can't be suitable. The other is the client do not want to use the 3rd part tools for confidential purpose, they just comfortable when all tracking data based on their system or signed with confidential official contract with agency.
We're developing our tools for better control the output data and curious functionality, it's exiting in data collection and intelligent statistics.
If you're looking for a self tracking system or customization from some functional tools, maybe you can ping us to discuss your issue and find out the suitable solution for you.