LinkedIn says its mobile page views have gone up by 400% year-over-year, making it the fastest-growing service it offers. With that, the company is making improvements to its mobile experience.

“With our experience building apps that meet the needs of professionals on the go, we had an opportunity to rethink how to best meet our members’ needs and have completely redesigned our mobile experience to make it faster, simpler, and better,” says LinkedIn’s Chad Whitney.

LinkedIn says the new mobile version is ten times faster across all features. It has also been reorganized into four categories: Updates, Inbox, You, and Groups & More.

In Updates, you can view updates from your network and news from the LinkedIn Today feature. From Inbox, you can view invitations and messages from the same place. From You, you can access your profile, connections, and share updates. From Groups & More, you can browse and interact with groups and use the People You May Know feature.

“The other big change that we’ve implemented based on user feedback is that the mobile app experience now starts with the Update stream, one of the most frequently used areas of the current mobile app,” says Whitney. “We want to help our members be great at what they do and one way to do that is to help them stay up-to-date on news and information from their network, company, and industry that they can glean from their updates stream.

LinkedIn is not only updating its mobile apps, but for the mobile web on iPhone and Android devices via touch.linkedin.com.

“For the first time, we’ll be providing that experience not only in our iPhone and Android applications, but also in a brand new HTML5 experience for use in any modern mobile web browser,” says Whitney.

In its recent earnings report, LinkedIn reported a 120% increase in year-over-year revenue.