Roboto Font License

Hi,

I am using "Roboto" font from Google web font in my application. This application will be published on cloud with-in some months and it'll be accessible from many locations around the world by clients.

As I found that Roboto font have "Apache License, Version 2.0". So my question is:
Can I use this font with-in my application free or I have to pay/credit or include any license info in my application?

Thanks a lot in advance.