Hi. Not all applications are shown in the logs when I try to see my data usage by app - some applications just don't appear there. I'm not sure if this is a bug or what is happening. If you need any more information, please let me know.
In its default configuration NetWorx displays top 20 apps and web-sites by usage, but you can easily change that to a higher number or to show them all.
To do that, open the Hidden Options. There is Top applications and web-sites parameter near the bottom of the list. You can set it either to a higher number, or to 0 to see all recorded applications and web-sites.