I'd sign up if there was a way to make a list of apps I want but think are too expensive, and then have it email me if there is a sale on any of those. Can it d

I'd sign up if there was a way to make a list of apps I want but think are too expensive, and then have it email me if there is a sale on any of those. Can it do this? I can't see myself checking the page everyday, i might as well check the app store.