I was using Wunderlist for to-do lists of review/submit deadlines, a shared family grocery list, etc but as I posted (https://mathstodon.xyz/@11011110/103810987800264328) it is being strangled by new owner Microsoft to push you to their other thing.
So after comparing other cross-platform shareable to-do-list apps I chose todoist (https://todoist.com/) because of its similar workflow and Wunderlist import feature (https://todoist.com/import/wunderlist). Close second was @tomhull's suggestion, Trello. Not as close: Microsoft.
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