Putting a number on a better website.

The problem

Founders are asked to fund website improvements without a way to estimate what they are worth, or how long it takes to prove a change worked.

The decisions

1. 01

   Show the test, not just the upside.

   Alongside the monthly value, the tool estimates visitors needed per variant at 95% confidence and 80% power, and how many weeks that takes at your traffic.

2. 02

   Assumptions you can share.

   Every input is kept in a share link, so a team can discuss the same scenario.

3. 03

   Calculation kept separate from the screen.

   The maths lives in a pure, tested module, so the estimate can be checked independently of the interface.