Maverick Studio is described as 'GPU-accelerated render engine for engineers, designers and artists'. There are more than 25 alternatives to Maverick Studio for a variety of platforms, including Windows, Mac, Linux, Autodesk 3ds Max and Sketchup. The best alternative is Adobe Dimension. It's not free, so if you're looking for a free alternative, you could try LuxCoreRender or appleseed. Other great apps like Maverick Studio are Keyshot (Paid), V-Ray (Paid), Toolbag (Paid) and RenderMan (Free Personal).
Cardbox is the fastest, easiest and most intuitive way to create beautiful visualizations of 3d boxes. Simply drag the design into the left window, adjust sizes of the sides and export the render to be used for promotional material!.
PhotoView 360 is the new visualization and rendering solution from Solidworks. Its a highly interactive environment for viewing your designs as well as for creating photorealistic renderings that you can use to showcase your designs.