Is there an annual subscription option for Enterprise? Follow No. Currently, the only plan that is offered is the Enterprise monthly subscription at the price of $9.99 per Sideline number. Questions? submit a request. Related articles How is my Enterprise subscription billed? Compare Sideline Account Types Sideline Standard vs. Sideline Pro Do I need to have a Sideline account to sign up for Enterprise? How to change payment details for Enterprise Comments 0 comments Article is closed for comments.