1.
You'll see a discreet message in your browser when you browse a product which is cheaper at a competing retailer. Clicking on the button will take you straight to the relevant product page at the competing retailer.
2.
A green InvisibleHand logo in the status bar means that you're browsing a retailer which works with InvisibleHand.
Sometimes it takes a few seconds for InvisibleHand to work out if there's a better price. The logo will pulsate when InvisibleHand is 'thinking'!
Sometimes it takes a few seconds for InvisibleHand to work out if there's a better price. The logo will pulsate when InvisibleHand is 'thinking'!
3.
InvisibleHand also works with Google search results.