Looks like a lot of other fonts, but different.

Classification: 
Font: 
Aller Bold
Solved by: 
Fivos Vilanakis

This one is making me crazy. It looks like a lot of other fonts, but either the M is incorrect, or the R doesn't have the gap. Any thoughts?

Comments

It must be Aller (Bold) by Marc Weymann [Dalton Maag, 2010]
There is also a limited free license on Font Squirrel.

Brilliant! Thank you, that's exactly the font :D