Volume Preserving Smoothing ($)

[anon62435837]

What is the difference between this and the free:

EWOCprojects presents LapRelax

Blender 2.8 update available! New product of labour! LapRelax is a smoothing tool for meshes for all those who want to keep shape/volume. Download at EWOCprojects. Website woos? Here. current version: 2.79 → 0.2.0 2.8 → 0.3.6

Thanks.