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@EClark**
You can only use it forever if you buy the "perpetual" licence, but that licence comes in different categories and it's extremely expensive for the one that will allow you to use it commercially.

Basically, they've adopted the greed-machine system Adobe use, but you don't have to use that option.  You can pay mothly or you can buy a permanent (perpetual) licence so basically it's like this:

• Different versions of the software to choose
• Different licences to choose
• Different payment options to choose

To buy a permanent licence that would last forever and allow you to use it commercially is the expensive up-front option (no doubt to force people onto the Adobe-style subscription greed-machine they've implemented), and if you do that, you're no wiser than all those Adobe users out there who are paying a constant fee for a licence they will never own.  For software like Photoshop there are much cheaper pay-once alternatives out there and people should support those instead, but for software like Marvelous Designer, there is no alternative yet.

It's expensive for the only licence they have that's actually worth having.