Fibonacci estimates for collaborative remote teams
Start a session, drop the link in your Teams or Zoom chat, and size each ticket together in under a minute. No accounts. No install. Nothing kept after you're done.
- No sign-up
- Anonymous votes
- Deleted when the session ends
- Free
Your meeting does the talking. Planonacci does the counting.
Create a session
Pick a timer and a scale. You get a short link, and you're the leader.
Share the link
Paste it in the meeting chat. Teammates open it on a laptop or phone. No names asked.
Ask and vote
Type the ticket. Everyone picks a card before the timer runs out. Votes stay hidden until the reveal.
Reveal and decide
See the estimate and how the votes spread. Discuss, revote, or move to the next ticket.
The gaps grow with the uncertainty
Small tasks are easy to compare: a 2 is clearly smaller than a 3. Big ones aren't: nobody can honestly tell a 14 from a 15.
In the Fibonacci sequence each number is the sum of the two before it, so every step is roughly 1.6× the last. The choices thin out exactly where precision does. Your team picks between 8 and 13 instead of debating 9, 10 or 11, and moves on.
It's a scale for relative size, not hours. Comparing two tickets is something people do well; predicting time isn't.
Bars sized 1, 2, 3, 5, 8, 13 and 21, with gaps of 1, 1, 2, 3, 5 and 8 between them.
Five rules, no manual
Everyone votes at once
Values stay hidden until the reveal, so nobody anchors on the first number said out loud.
The most common value wins
A tie goes to the higher value, and the result says it was a tie.
The timer is the deadline
No card by 0:00 counts as abstaining. If everyone votes early, the result shows right away.
A wide spread means talk
The distribution shows where the team disagrees. Hear from the lowest and highest votes, then revote.
Your team decides what a number means
Planonacci doesn't define a unit. Effort, complexity, risk, or all three: agree on a reference ticket everyone knows and size the rest relative to it.
Nothing to sign up for, nothing left behind
No accounts
Leaders and voters never sign up, log in or give a name. The link is the only key.
Anonymous votes
Nobody sees who voted what, including the leader. Results show counts only.
Deleted when you're done
Each person's vote is discarded when the round closes. Questions and results are deleted when the session ends.
Ends on its own
End it with one click, or close the tab: a session ends 30 minutes after the leader leaves.
No tracking
No cookies, ads or analytics. Settings stay in your browser. Our host keeps request logs for a few days to fix problems; they never contain questions or votes.
Live and lightweight
Each session is a tiny real-time server on Cloudflare's global network, close to everyone on the call. Any modern browser, desktop or phone.
Go deeper
Background on relative estimation, from the people who popularized it.
- Why the Fibonacci sequence works well for estimating (opens in a new tab)The short case for widening gaps. Mike Cohn · Mountain Goat Software
- Planning Poker (opens in a new tab)The technique Planonacci is built around. Mountain Goat Software
- Story Point (opens in a new tab)What story points are for, and how teams misuse them. Martin Fowler
- Planning poker (opens in a new tab)History, process and variations. Wikipedia
- Weber–Fechner law (opens in a new tab)Why we notice differences in proportion, not in absolute size. Wikipedia