Glossary
Price alert
A message when something drops below the price you set. Needs the daily price check, which has not started. Free will cover a few items; Plus has no limit. As of October 23, 2026, no alert can fire yet, because each of the 376 products in the index has one dated price.
History is never filled in backwards, so the line starts on the first day it is measured.
Why it matters here
At Vessim.
Without one you have to keep checking. Once the daily price check runs it will check for you; until then Vessim says plainly that alerts are not live.
How it worksThe whole method, from a photo to every price.Put it to work
Now say it your own way.
You don't need any of these words to search. Describe what you want, and we'll find the cheapest one that fits.