Invisible Hand is described as 'InvisibleHand discreetly notifies you if the product or flight you’re shopping for is available more cheaply from another retailer or travel site. The notification provides a convenient link straight to the relevant page on the competing website' and is an app in the Home & Family category. There are more than 50 alternatives to Invisible Hand for a variety of platforms, including Online / Web-based, Android, iPhone, Mac and Windows. The best alternative is Skyscanner, which is free. Other great apps like Invisible Hand are Honey (Free), KAYAK (Freemium), Google Flights (Free) and Price Snoop (Free).
KAYAK enables you to easily compare hundreds of travel sites at once, in one comprehensive, fast and intuitive display. If you want to spend hours searching every airline, hotel and other travel site yourself, that’s one option.