I have formed an LLC in my state. I am currently developing a mobile application under a different name, but published as my LLC. Note, the mobile application itself will not generate revenue directly. I am also developing a website under a similar name "[Application Name] Portal" that is business facing. This site will be available on a subscription basis.
Do I need to file a DBA for accepting payments on the business facing portal? If I do all transactions under the name of my LLC, would I still need a DBA?