Taco Bell launched an advanced mobile app Tuesday that allows customers to order and pay for takeout on their smartphones.

All of Taco Bell's social media platforms provided a link to download the new app absent of anything else on the sites Tuesday, revealing that, "the new way to Taco Bell is #onlyintheapp."

If you had the previous app, you get an automatic update to the new one.

"We wanted to make sure our fans were the people who found out about this first," says Tressie Lieberman, senior director of digital platforms, regarding to the social media blackout.

"We wanted to break through with a message that gets them excited and talking."

President of Taco Bell, Brian Niccol told USA Today, "Technology has fundamentally changed the way people interact with brands. All can be done any time, any place on a smartphone."

Taco Bell isn't the only franchise with exciting new gadgets. Outback Steakhouse announced Tuesday that it plans to have an online reservations tool for mobile, iPad or laptop.

It will be the first in the industry to have a device that shows real-time waits for seating at every location in the country and lets the user get a place in line.

Many food chains are investing big bucks in new technologies such as McDonald's, Starbucks, Pizza Hut, Papa John's and Domino's.

Millennial consumers are the main target for the new investments. Best known for their impatience, the generation would rather interact quickly with their smartphones than stand in line waiting to order.

These days the number one goal is to "get the customers and provide technology and services to keep them," says Jerry McVety, founder of food service consulting firm McVety & Associates.

Some products will only be accessible via mobile app for Taco Bell to encourage people to use it.