• by Karlene Lukovitz  @KLmarketdaily, June 5, 2012

To promote the release of its first mobile app, Denny’s is offering free Grand Slam breakfasts for life to the first individual who checks into Denny’s locations in all 50 U.S. states.

The launch of the challenge kicks off Denny's latest “Tour of America” menu, which features regional breakfast, lunch, dinner and dessert specialties from around the country.

To participate in the challenge, diners need to check in at Denny's locations across the country using the new mobile app, available via the Google Play Store for Android Apps and the Apple App Store.

The challenge will be live on the app for a year. For every check-in during that time, users will unlock a digital “state souvenir” and various badges that deliver rewards, in-store offers and redeemable coupons.

Guests are rewarded for visiting as many Denny's as possible, gathering larger “milestone prizes” as they visit more states.

If a team (up to three people) is first to check into Denny’s in all 50 states, each will receive free Grand Slam breakfasts for a year.

The Denny’s app features the same functions as its site, allowing users to view its full core menu, Tour of America menu and latest specials, as well as to find nearby Denny’s locations and menu items’ nutritional information.