Estimate User Stories with Planning Poker

Estimating user stories accurately is one of the hardest challenges in sprint planning. Without a structured process, estimates are dominated by the loudest voice in the room or anchored to the first number someone says out loud. Planning Poker eliminates both problems. devtoolkit.sh's Planning Poker brings the whole team into a real-time estimation session where each developer independently selects a story-point card — Fibonacci, T-shirt sizes, or powers of two — and all votes are revealed simultaneously. When estimates diverge, the team discusses the gap and re-votes, quickly converging on a consensus. This process surfaces hidden complexity, aligns understanding of acceptance criteria, and produces estimates the whole team stands behind. No signup is required: create a session, paste the user story title into the room, and start estimating in under a minute.

FAQ

Why is Planning Poker better than asking each person for an estimate?
Sequential estimation causes anchoring bias — later estimates are pulled toward the first number stated. Planning Poker uses simultaneous reveal so every team member commits to their own estimate before seeing others, producing independent and more accurate assessments.
What story point scale should my team use?
Most agile teams start with the Fibonacci sequence (1, 2, 3, 5, 8, 13, 21) because the increasing gaps between larger numbers reflect the reality that bigger stories carry more uncertainty. T-shirt sizes work well for teams newer to estimation.
How many rounds of voting should a story take?
Most stories converge in one or two rounds. If a story requires more than three rounds of discussion without consensus, it is usually a sign the story needs to be broken down into smaller, better-defined tasks.