I have decided to make the 4D Paint features available to everyone under a Pay What You Want payment model.
Read more about it here
— EDIT —
I decided to let this run for two months to gauge the interest in this type of sales model. It has now been discontinued. It looks like people would rather pay full price and get support and updates, which is nice to see. The product is still for sale at the regular price over at https://www.plugins4d.com