Microsoft Planner vs Trello

https://products.office.com/en-us/business/task-management-software

https://www.getapp.com/project-management-planning-software/a/trello/compare/microsoft-planner/

https://www.computerworld.com/article/3244466/collaboration/microsoft-planner-a-trello-rival-benefits-from-office-365-integration.html

https://awecomm.com/Blog/2016/12/08/pros-and-cons-microsoft-planner-vs-trello/