However, you can get instant price comparisons with browser add-ons from FreePriceAlerts.com. When you download the browser add-on and shop online as you normally would, the tool searches other retail sites and displays an alert if a product you’re viewing is cheaper at another site. The FreePriceAlerts tool works on Chrome, Firefox, Internet Explorer and Safari browsers. You don’t have to register on the site to download the tool, but if you do, you can set target prices for items you want and receive e-mail alerts when prices fall to the levels you want.
I do not like the security of this apps. By default any one in my home can just open it up and start buying things on my account. I would like it to just add things to my cart on the TV and them buy on "My" Computer or "My" phone. I know you can setup a PIN for "videos, purchasing and certain types of content".But, you then need to enter the PIN for $0 videos. Also, anybody with access to the Fire TV remote can just install the apps and start buying things, no pin, no password, just because you have a Fire TV setup on your account. Amazon you need to have a separate PIN for Buying videos, parental control (ratings), Apps and Shopping. And by default the app should setup a PIN.