Owlie - A beautiful app for quick decision making with friends
Gone - An ephemeral to-do list
DemocracyOS - DemocracyOS is an open source application for online decision making.
Streaks - The to-do list that helps you form good habits.
Decidim - Free Open-Source participatory democracy for cities and organizations
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.