Photo-messaging app Snapchat added four million new users in the first quarter of 2019, registering revenue of $320 million -- up 39 per cent (year-over-year) -- thus beating the Wall Street estimates.

Snapchat's daily active users (DAUs) were 19 crore -- up two percent from 18.6 crore in the previous quarter but down from 19.1 crore in Q1 2018.

"In the first quarter we delivered strong results across our business with growth in daily active users and revenue," CEO Evan Spiegel said in a statement late on Tuesday.

"Our new Android application is available to everyone, with promising early results," he added.

The new app is 25 percent smaller, opens 20 percent faster on average, and is modularized for more efficient ongoing innovation.

As of March, Snapchat ads reached 75 percent of the US consumers in the age group 13-34 -- more than Facebook-owned Instagram.

The company announced 10 new Snap original shows which will begin airing in May.

"We've enhanced Discover's high quality, made-for-mobile video offering across the Snapchat platform. In Q1 2019, nearly half of our daily Discover viewers watched Discover every day of the week," said the company.

It now offers more than 450 premium content channels worldwide.

"As we look towards the future, we see many opportunities to increase our investments, and will continue to manage our business for long-term growth," Spiegel noted.