Their website does say that you can pay per image at $1 per image. I am in the opposite boat though. I could see this having a very significant effect on photogrammetry but I would need to process a few thousand images at a time which would not be very feasible with their current pricing model
To the developers. A very promising piece of software for a VFX supervisor like me. BUT, please reconsider your pricing tiers and introduce a per-image price. We are a pretty large facility, but I can only imagine needing about 1-10 images a month at the very most. It's like HDRI's - we buy them all the time, one at a time. They need to be individually billed so a producer can charge them against a particular job.
Sergey Gricay created a fantastic piece of software, which allows you to create some phenomenal versatile bolts.
Sergey Gricay continues to experiment with Substance Designer, building some fantastic stuff. Most recently, he uploaded a free Bolt Generator and made it available for free on Gumroad. The pack includes the filter (.sbsar) that generates the texture of the bolts (can be used with the free program), brush for Zbrush (.zbp), and an archive with alphas that can be used as a brush (.7z).
Sergey promises to update this section occasionally. Enjoy your bolts!