ultra_outliner is described as 'The card-based outlining software for screenwriters, novelists and all story writers' and is an app in the News & Books category. There are more than 10 alternatives to ultra_outliner for a variety of platforms, including Windows, Mac, Online / Web-based, Linux and iPhone. The best alternative is diagrams.net, which is both free and Open Source. Other great apps like ultra_outliner are Dia (Free, Open Source), Manuskript (Free, Open Source), Scrivener (Paid) and TreeSheets (Free, Open Source).
- 21 alternatives