I use Carveco Maker This is the cheapest version which is only available on a monthly payment plan of $15 plus any relevant taxes in your location. There are monthly plans for the higher specified versions and they can be purchased outright as as well. It includes the post processors for Carbide 3D in inch or metric units. It creates an industry standard .nc file which Carbide Motion can cut. They have several really interesting toolpaths and the ones I use for my 3D models are circle in a box with roughing in an optimised circular pattern. For a discussion of how and why they are frequently more useful than raster carving, send me a message.
If you are familiar with any other graphic design software for images or design, then Carveco uses an interface which follows many of the conventions of design language. I don’t remember if they have a free trial period but unlike Vectric software, there are no limits to what you can design or save nor do they limit the size of your project. Just start a plan and then you can drop it before the month is up so effectively, it is a trial for just $15. You also get to access all of their training and tutorial material for free. They also provide a library of 3D models and vector models to their users. Their support system is responsive and they have been flawless in the few years I have used Carveco software.
I have found the software hugely capable and my latest carve is this one. It is olive wood sized to 140 x 140 x 50mm and the model is 18.29mm in depth. It required no sanding but the surrounding wood was sanded to 3000 grit and the whole workpiece was finished with a light coating of beeswax.