Meistertask

MeisterTask is a collaborative task management tool. Features customizable Kanban-style boards to visualize progress & prioritize tasks. Create, assign & discuss tasks with team members, set deadlines & priorities. Intuitive & easy to use for teams of all sizes & industries. Integrates with other productivity tools.
Taskade

Taskade is the perfect task management solution for collaboration and communication. It helps teams easily organize their tasks, prioritize with tags, set due dates and deadlines, sync in real time across platforms, collaborate on projects and goals, store data securely in the cloud, access resources anywhere, and track your progress all in one secure platform. […]
Asana

Asana is a powerful project management and team collaboration platform. Create tasks, set deadlines/reminders, track progress, communicate with team members and more. Available on iOS, Android & the web. Features for document management & file sharing make it a comprehensive tool for productivity & organization – used by marketing, engineering & customer support teams.