Simmetri is described as 'Creative toolbench and sandbox for building interactive 3D experiences for VR and screens. It's powerful enough for stadium-filling professional VJ's, while accessible and educational enough for VR-creation-hungry students, designers, artists, programmers' and is a VFX software in the photos & graphics category. There are six alternatives to Simmetri for Windows, Mac and Linux. The best Simmetri alternative is Adobe After Effects. It's not free, so if you're looking for a free alternative, you could try TiXL. Other great apps like Simmetri are NUKE, Isadora, Smode Studio and Notch.