VideoStitch is described as 'powerful stitching engine to produce panoramic, high-resolution videos. It uses state-of-art algorithm to have seamless blending' and is an app in the Photos & Graphics category. There are three alternatives to VideoStitch for Mac, Windows, Linux and GIMP. The best alternative is Stitch Panorama, which is both free and Open Source. Other great apps like VideoStitch are ArcSoft Panorama Maker (Paid) and Autopano Video (Paid).
ArcSoft Panorama Maker creates stunning panoramas out of images and videos .It makes panoramas from vast landscapes, city skylines, mountains ranges, lush forests, towering skyscrapers, and cascading waterfalls,providing five professional stitch modes .