Forget Tape Measures, Now An App Can Tell You What Bra To Buy: Software Uses Just Two Photos To Work Out What Size You Are In Only 5 Minutes

Once only an experienced sales assistant armed with a tape-measure could ensure a woman found the perfect size bra.

Now a smartphone app is claimed to be even more accurate – as well as less embarrassing for those who might find undressing in front of a stranger a little uncomfortable.

All users have to do is stand in front of a mirror wearing a tight-fitting top or in their bra and take two selfies.

Holding the smartphone at belly-button height, they take one snap facing front, then turn 90 degrees and take the other from the side. They must take the photo themselves.

Software developed by San Francisco-based lingerie company Thirdlove first calculates the distance between the mirror and the body using the smartphone as a unit of measurement.

From that it works out the size of the woman’s body as well as her bust size – all within the space of five minutes, the makers claim.

Afterwards customers can order Thirdlove bras online, many of which come in half-sizes.

Heidi Zak, founder of the company, said: ‘In essence what we are getting is a woman’s overbust, her underbust measurement and her body shape, which is the same thing a bra fitter gets in a store.