The best software for story builder is Stori Bundle. It is an all-in-one solution for creating, organizing, and managing stories. It allows users to create stories with a variety of editing tools, including video, audio, text, and photos. It also has a library of pre-made scenes, characters, and locations, as well as a set of templates for creating custom stories. Additionally, it has a collaborative mode for sharing stories with other users and a reporting system for getting feedback from others.