SayNo is described as 'Task manager for founders who spend too much time on low-value work. Every task must be classified as Signal (aligned with quarterly goals) or Noise (delegate or kill). No middle ground — forces the prioritization decision upfront' and is a todo list manager in the office & productivity category. There are more than 50 alternatives to SayNo for a variety of platforms, including Mac, Android, iPhone, Web-based and Windows apps. The best SayNo alternative is Super Productivity, which is both free and Open Source. Other great apps like SayNo are Notesnook, Todoist, Workflowy and Tasks.org.