Checkvist vs WeDo

Checkvist hits a sweet spot between minimal and complexity. It gives you a host of options and extras to use on your lists, but you can completely ignore them if you don't need them and keep it very simple. This makes Checkvist a one-stop shop, regardless of what type of 'list' you need.

Search filters help you search for tasks by tag, due date, assignee, etc.

To-do lists often need to be grouped and regrouped for clarity. The outline-based nature of Checkvist makes it easy to move things across categories, to increase and decrease priority, etc.

Parses markdown, html links, hashtags to become formatted text, clickable links, and tags, respectively.

Checkvist offers many free features if you are using this individually.

Any item can have a free-text comment, which can be shown or hidden as desired.

Has versions for Android, Web, and iOS.

You can attach files to each task.

It is a new app, but they have a very good interface so the users can send their suggestions to improve the app.

It allows users to set recurrent tasks.

You can add subtasks to any task.

It allows you to assign tasks to other person. If he/she does not use WeDo, it sends an invitation.

At least for a while.

You can add groups, and for each group, yuou can add members. It is something like Trello Boards, but I think its better.