The license for this application doesn't have a validity period. According to the official website, there is a one-time payment and that's it. Once the payment has been cleared, you will receive a key and use the application for as long as you want. There is no yearly or monthly fee to use the application. For more information, access the website. You will need to pay again if you plan to upgrade to another major release (2.x, 3.x) of the product.