Taiga.io vs. Mingle vs. Acunote

Taiga is a project management platform for startups and agile developers & designers who want a simple, beautiful tool that makes work truly enjoyable. Over 55,000 developers & designers and over 52,0000 projects in first 10 months.

Mingle is an online project management tool brought to you by ThoughtWorks. It enables companies of all sizes to successfully implement -- and scale -- agile practices, from startups to large enterprises.

Acunote is an agile project management tool and Scrum software. Companies from 1 to 100,000 people use it to manage software development, IT project management, and as an online project management software for the whole company.