"Starting today (Friday), Twitter is categorised under the news section of the App Store rather than social networking. It is a change that makes a lot of sense and fits with both how Twitter has positioned itself as well as how it is being used," a technology website reported.

Twitter is famous for real time news feeds and events and unlike Facebook, it is preferred less when it comes to keeping in touch with friends. It is more about following people who share things you find interesting and relevant, whether you know them or not.

Twitter Moments was probably the biggest new feature the service launched in the last year and it again shows its focus squarely on curating the best commentary surrounding current events, the report noted.

This is probably the best thing that has happened with Twitter as this change has helped it gain more visibility and it is now the number one free app in the news category of the App Store.

Twitter shares fell sharply about 12 percent after the micro-blogging website, which managed to add 5 million people to take its monthly active user base to 310 million, missed the first quarter revenue estimates this week.

The company posted USD 595 million revenue in the first quarter ending March 31. It was up 36 percent from USD 435.9 million in the same quarter last year but missed the USD 607.9 million expected on average among analysts, Forbes reported.

Twitter posted a net loss of USD 79.7 million compared with a year-earlier loss of USD 162.4 million. Twitter CEO Jack Dorsey said that 'we remain focused on improving our service to make it fast, simple and easy to use'.

Twitter has predicted revenue for the second quarter between USD 590 million and USD 610 million -- much lower than the USD 678 million analysts expected.

"Revenue came in at the low end of our guidance range, as brand marketers did not increase spend as quickly as expected in Q1," the company tweeted.

According to Dorsey, the engagement on Twitter is growing. Direct messages are up about 50 percent year-over-year and tweets shared via direct message are up more than 75 percent quarter-over-quarter.

Twitter said more than 800 million people visit the site and there are more than 1 billion monthly unique visitors to pages that syndicate Twitter content. Twitter's stock has fallen over 20 percent this year amid sluggish growth.

Twitter to become your future teacher