Natick Company Develops Free Calling App For iPad

BOSTON (CBS) – Natick-based Vivox has found that it's app called Bobsled, which offers free calling through a mobile device browser, is hugely popular.

Bobsled was originally launched a year ago and was introduced by T-Mobile.

And as of Monday morning, Bobsled, which is free, was ranked at number 28 on the most downloaded list for the iPad, ahead of Facebook which was at 30.

The company's CEO told the Boston Business Journal they've never been more excited about their future.

Vivox just announced the opening of its second office in downtown Boston, and it's looking to double its 40 person staff in the next year.

To date, the firm has raised $25 million in venture capital funding.

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Lisa van der Pool of the Boston Business Journal can be seen weekdays at 6 a.m. on WBZ-TV.