Wavget.com software is free to use for 30 days. If you like the software and want to continue to use it after 30 days, you have to purchase a license.
A license is one-time purchase valid indefinitely for the version of the program you purchase.
When you purchase a license it includes one year of maintenance upgrades. You can purchase additional years of maintenance if you would like to receive new versions for a longer period of time.
You will receive your license information via email with instructions on how to enter it into the program so you can continue to use it.
A license entitles you to use the software on multiple computers as long as you are the only user.