KOI is described as '(Kommunikation, Organisation, Information) is a cloud based task, document and process management software. KOI stores all your ideas, projects, tasks and documents in the cloud. The KOI Desktop App based on the Eclipse RCP uses most of the features of the platform including' and is a todo list manager in the office & productivity category. There are more than 100 alternatives to KOI for a variety of platforms, including iPhone, Web-based, Android, Mac and Windows apps. The best KOI alternative is CherryTree, which is both free and Open Source. Other great apps like KOI are Cryptee, Remember The Milk, UpNote and Zoho Notebook.