RenderZone is described as 'Allows you to create photorealistic renderings based on the LightWorks® rendering engine. It offers three levels of rendering: simple, z-buffer, and raytrace. A user can start developing the image of a 3D model at the simple level and gradually turn on features' and is an app in the photos & graphics category. There are more than 25 alternatives to RenderZone for a variety of platforms, including Windows, Mac, Linux, Autodesk 3ds Max and Sketchup apps. The best RenderZone alternative is Adobe Dimension. It's not free, so if you're looking for a free alternative, you could try LuxCoreRender or MoonRay. Other great apps like RenderZone are V-Ray, POV-Ray, Keyshot and RenderMan.