The Deep Packet Inspection in Bandwidth Manager is pretty basic. It is capable of matching services listed in the global settings:
Having said that, it is not guaranteed to match a specific service at all times, and DPI matching will increase CPU usage. Depending on what you need, it may or may not be acceptable.
Regarding the trial version, it is a fully functional 30-day trial, i.e. exactly same functionality as the licensed version, only limited by the 30-day time frame. You can download it from
Bandwidth Manager product page, give it good run and see if it suits your requirements.