Tasks are your work, day by day. Assign them, tag teammates and send them for review. Boards are where the whole team works on one project together.

TasksYour work, day by day
BoardsTeam projects, together

Who's in it

The first difference, and the biggest.

You, and who you bring inYour list for the day at work. Assign a task to a teammate and it lands on their list too.
The whole teamEveryone on the board sees every card, and who is working on it.

Adding things

Both are quick, in different ways.

Type it like you'd say itDates become deadlines and @names assign teammates. Every line becomes a task.
Add a card to a columnDrop a card into any column. Name columns your own way, like Waiting on client.

Moving forward

How work gets from started to finished.

Tap to move it alongTo Do, In Progress, In Review, Done. Send it for review and the person who gave it to you is told.
Drag it acrossPick up a card and drop it in the next column. The team sees it move.

Working together

Both are made for teams.

Assign, tag, follow alongAdd teammates to a task, @mention them in a comment, and see who ticked off which subtask.
Checklist, labels, comments, filesTalk about the card on the card, with @mentions, voice notes and attachments.

Seeing progress

Two kinds of done.

Today's milestone and your streakYour progress bar fills as you finish. Keep it going for a streak.
The board's progressEvery board shows how much is done, with a cover so it's easy to spot.
Tasks for your day.Boards for your team's projects.