trello
I would like to know if there is any "simple" way to trace, in a calendar for a given Trello project board, the day by day history number of cards in a given list.
I would need to see the Todo list history with just the number of card for everyday.
Is there any plugin or tool for doing that ?
Each card has a card number which roughly translates to when it was added. For example, the card Subscribe on the Trello Development board is number 1049, which means it was roughly the 1049th card added to the board. The card number is visible in the bottom right of the back of a card.
There's no way to change or recalculate the card number. You might try just changing the title, though that can be a lot of work.
EDIT: Here is a screenshot from the latest version of Trello
I have just recently tried to do this myself. It does not seem possible. What I did instead (not a complete workaround) was to create a new board in an organization that is visible to the organization members. They can view, vote, and comment, but nothing more.
Best Answer
Here's a way:
Invite user "butlerbot" to your board. It will automatically create a "Butler" list in your board.
In the "Butler" list, add a card with the following title:
every day at 6pm, count the cards in list "X"
Every day, the bot will automatically post a comment on that same card with the number of cards in the list. If your timezone is not U.S. Eastern, you also need to add another card with a title such as:
A list of all the timezones supported by the bot can be found here: Timezones
There's a ton of other stuff the bot can do, check it out here: Butler Bot for Trello. You can also contact the author and request support in that same board. Disclosure: I'm the author.