I currently have the demo version, but I am not sure what version I need to purchase. The software will be used only by me, for now, so I would like to know what version of the ones available I need to buy.
You will either want to upgrade to Scripter or Pro. The only difference that will impact that decision is if you want to use our CRM and email automation. If not, the Scripter subscription will work for you. If you do, then you will need to get the Pro.