App Wish List Price Tracker for iPhone from Eric Brown
App Wish List & Price Tracker allows you to keep track of all the apps you’d like to get at a later time. Here’s how it works:
1) Add apps to your wish list by using the share extension in your app
2) Set a price for each app you wish to get at a later time. This helps you save money by waiting until the app you are interested in reaches the perfect price.
3) Save money by sharing apps you are interested in with your friends. This way, your friends will also be able to track apps you’re interested in.