How "best" is decided

Every rule this app applies, written out. There are not many.

You pick the rule, not the app

A board's winner is either the cheapest or the most loved, and the switch sits directly under the table. "Best" is not a fact about an object and the app does not pretend to know one, so it makes you say which you mean.

Sold out cannot win

A candidate only qualifies if it is active and has stock. This matters more than it sounds: the most common way a board's winner changes is that the cheapest one sold out, with nobody touching a price.

Highlighting: ties light up nothing

The best cell in a row is highlighted only when there is a best cell. If every candidate has the same price, or only one has a usable number, nothing is highlighted — colouring all of them says less than colouring none.

A newcomer has to win by a margin

When a board hunts and finds something cheaper, it is only brought to you if it is at least 5% cheaper than the current leader. On the "most loved" rule it needs a clearly larger following, not one more heart. Without that margin you would get a mail every day about a fifty-cent difference and stop reading them by Thursday.

You are told once

Each change is mailed once. If a board's winner flips back next week, that is a new change and you hear about it again — but the same state is never re-sent.

Six candidates, twelve boards

Ceilings per account, so one account cannot exhaust the shared Etsy rate limit for everybody else. Six is also about where a comparison stops helping and starts being a spreadsheet.