Scrum for Trello is a subscription-based extension that integrates seamlessly with Trello to enhance project management, particularly for Scrum methodologies. This tool allows users to add time estimates and record time spent directly on Trello cards, making it easier to track progress and manage workloads. Key features include the ability to view sums at the top of each list and on the board, providing an overview of estimates and actual time spent.

Using Scrum for Trello is straightforward; users can edit Trello card titles to include estimates in Fibonacci numbers or time spent using specific formatting. Estimates are entered in parentheses, while time-spent is noted in square brackets. This intuitive approach allows for quick updates and organization of tasks, enabling teams to maintain clarity and efficiency in their Scrum projects.