Aussie duo, Jethro Batts, 28, and David Boulton, 24, created controversy at the TechCrunch when they did their supposedly "tongue in cheek" presentation of their very own TitStare App.

What's up with this app?

During the duo's pitch, the two engaged themselves in a comedic dialogue.

David explained that the TitStare App allow users to "take photos of yourself, looking at tits."

His partner Jethro then asked:

"Why David Why?"

David said:

"It's Science my good friend, Science. Did you know that looking at breasts is linked to a sign of having a good healthy heart?"

The duo then talked about how the male life expectancy decreased three per cent in the last five years.

David explained that the decrease in male life expectancy was linked to women covering up their cleavage - and this is where TitStare will come into play.

TitStare App will allow men to look at women's breasts anytime they want.

So, what can users do with TitStare App?

"It's the breast, most titillating fun you can have," according to the app's tag line.

Watch actual video presentation here:

Unfortunately, women found their presentation and the TitStare app not funny, sexist and misogynist. What made the issue more controversial was that there was a nine-year-old girl in the audience. The duo then suffered social media backlash.

In an interview with Fairfax Media, Jethro apologised and explained that they were not expecting such strong reactions from the social media community. He said that they were not aware that a young girl was present during the presentation. Had they known, they will not continue with their "tongue-in-cheek" manner of presentation.

"For anybody out there who was offended by it we're very, very sorry. It was based around a couple of ideas and having a bit of a laugh. If we offended anybody it was unintentionally done. It wasn't what we were hoping to do," Jethro said.

He also pointed it out that the majority of the audience had received the presentation as it is, and probably, those who only found out about the app through social media community had misinterpreted their pitch.

"You have one person who tweets to 50,000 or 100,000 people and if you have that many followers it can get misconstrued," Jethro said.

A colleague of the duo said that the duo were actually nice guys, but they might have tried very much to create an impact for their presentation.

"If you're a hurdler like them and you never trip over and have an accident then you're not trying hard enough. They're trying very, very hard and they've clearly stumbled," the colleague said.

Meanwhile, TechCrunch issued its own apology in an official statement:

"Normally our hackathons are a showcase for developers of all stripes to create and share something cool. But earlier today, the spirit of our event was marred by two misogynistic presentations.

Sexism is a major problem in the tech industry, and we've worked hard to counteract it in our coverage and in our own hiring.

Today's issues resulted from a failure to properly screen our hackathons for inappropriate content ahead of time and establish clear guidelines for these submissions.

Trust us, that changed as soon as we saw what happened at our show. Every presentation is getting a thorough screening from this hackathon onward. Any type of sexism or other discriminatory and/or derogatory speech will not be allowed.

You expect more from us, and we expect more from ourselves. We are sorry."