Would it be nice to get a coupon when you enter a store?
Imagine an app like Foursquare meets Groupon. (They tried but could you make a better version of it?)
How it works
To work the app will need to have access to your location and let you build a profile by selecting your favorite stores and items. Over time, the app will have the stores you go to often and try to find relevant deals for them.
Example: you go get a morning coffee at Starbuck every day then after a while it will send you a deal for Starbuck.
The app & service
The app itself would include your profile with the standard login, preference, etc. Where you can change your favorite store and see which store you tend to go and decide which one you want to get a deal from. The main app would be an endless feed of all the deals you currently have access to, maybe an ad inserted in between here and there.
When at a location where there’s a deal a notification will be sent and clicking on it will lead you directly to the deal in question.
There should be an app or service for advertisers & stores to submit their ads.
How to make money?
Find stores that want to be part of the program.
They pay to be on the app, monthly fee, per user fee and a commission on the item bought.
Stores might be willing to pay to send deals when users go to a competitor. Kind of like you can have google ads that send you to a competitor when you are searching for a store.
Interesting service that can come from that is to create a personalized newsletter for each user base on where they usually go shopping. You can slide in some ads and affiliate offers there too.