-Thank God! Josh. 

-See you later, Josh.

-Well, scientists say they've come up with an app, that once and for all, takes all of the guesswork out of getting that perfect fit. ABC's Aditi Roy takes one for the team. She has the story.

They don't call them intimates for nothing. We are pretty close here. Getting fitted for a bra can be uncomfortable.

-You don't want to be breathing out.

Even embarrassing. But coming soon, a free app called Thirdlove.

Designed by a team of computer scientists claims they can get rid of the well-intentioned bra-fitter, allowing you to find the right bra, using just your phone. 

-The technology that we use, takes two-dimensional images, like a photo. And turns it into three-dimensional data.

Here's how it works. You take front and side pictures, wearing a tank top. The app even tells you when you have the right angle.

The company says it only takes seconds for the app to size you. The only catch -- 

-It doesn't tell you your exact size.

Instead, it routes you to an online store, where all of the bras, apparently, are your perfect fit. Danny tested thirdlove. 

-It came in the mail two days later, I think it was. And it fit perfectly.

Other women we met are still a bit weary. 

-You have to take photographs of yourself and send it to someone you don't even know. 

The makers of the app insist their site is secure.