If you have a free Starter account, you can easily upgrade to one of the paid subscriptions. They will allow you to create more projects, pages and do more keyword suggestions. There are different kinds of paid subscriptions. Have a look here to see what is possible and might be a solution for you. Credits for keyword suggestions are renewed every 30 days / month.
Just click on the ‘free trial registration’ button below which directs you to the form. See for yourself what our Smart Writing Assistent can do for you and your company.