So they pretty much offer a limited version of what you can get with GDS access, which is usually $30 to $40 / month for 1 license and try to resell it with a higher scale.
Good business model for the ones who only want to use GDS a few times without getting a contract.
But not quite sure if its a business model for 2024, many airlines are shifting to NDC and around next year almost all legacy carriers won't be listed in GDS anymore.