Kudos stays quiet unless it's confident you'd come out ahead. If you didn't see a better-deal prompt, it's usually for one of these reasons.
There wasn't a better deal
Kudos only shows a suggestion when another store beats what you'd pay once price and Boost are counted. If the store you're on is already the best value, you won't see a prompt.
Kudos couldn't confirm an exact match
Kudos needs to confirm the other store has the same product, in the same size, color, or model where that information is available. If it can't, it won't suggest the item.
The item is out of stock elsewhere
Kudos only recommends stores where the item is currently in stock.
You already dismissed it
If you closed the prompt for an item, Kudos won't keep showing you the same suggestion for that item during your session.
You're not on a product page
Better-deal alerts work on individual product pages, not on search results or category pages.
The extension isn't turned on
Make sure the Kudos extension is installed, turned on, and that you're logged in. See How do I turn on better-deal alerts? for steps.
Still think you should have seen a deal? Reach out to us at support@joinkudos.com with a link to the product you were viewing, and we will dig in for you!