Heightmap to LowPolyTerrain

Hello, im searching for an idea or a script that turns a Heightmap (or Terrain) into a Low Poly terrains, i found some in the assets store but they are like $30+ so i just ask here.
it would be awesome if someone has a example project of low poly stuff, would be highly appreciated.

Thx!

Well you could first create a mesh with your Heightmap as discussed in the following question:
Heightmap to mesh

And after that you can convert the mesh to another mesh without any shared vertices with an edtior script as it was posted here:
No shared vertices editor script

Thats it. You now have a Low Poly Terrain out of a heigtmap.