HoloMapper is described as 'Real-time projection mapping software for creators, VJs, and visual artists. Warp images, videos, GIFs, text, and animations onto walls, objects, and custom surfaces using mesh controls, Bezier curves, snapping tools, and live projector output' and is a projection mapping app in the video & movies category. There are nine alternatives to HoloMapper for Mac, Windows, Linux and Web-based. The best HoloMapper alternative is Resolume Avenue. It's not free, so if you're looking for a free alternative, you could try TouchDesigner or MapMap. Other great apps like HoloMapper are MadMapper, HeavyM, VPT and Isadora.