CAMBRIDGE, USA: Bitstream Inc. has announced that the BOLT mobile browser, the company's web browser for mobile phones of all types, has passed a major milestone, achieving its one millionth install just 18 weeks, just over four months, after its public debut.

The BOLT mobile browser, built to be used on a wide range of mobile phones from simple "feature" phones to more advanced devices such as BlackBerry smartphones, has averaged greater than 50 percent growth in usage each month since the application made its public debut at Mobile World Congress in Barcelona this past February.

Since its introduction, BOLT users have consumed more than 22 terabytes (22,000 gigabytes) of data from 61 million web pages.

"It's been fascinating to see the similarities in how BOLT is being used by people all over the world, despite different geographies, languages and cultures," said Anna Chagnon, president and CEO of Bitstream.

The release added, BOLT users worldwide are discovering that BOLT's enhanced browsing experience leads them to spend more and more time surfing the Web from their mobile phones.

More than 20 percent of BOLT users spend 30 minutes surfing the Internet per session, with more than half of those, a figure that continues to grow, spending more than an hour per session. In addition to social networking, search, web-based email and video websites are top ten destinations all around the world.

People are particularly enjoying the video streaming feature of the BOLT browser, the only mobile browser that lets people enjoy streaming videos on average mobile phones from popular video services, added the press release.