The company has also extended its radio audience measurement contract in Switzerland.

Mobile app designed for TAM subscribers on iPhone, Android and Blackberry to access weekly data.

New company Footfall Analytics uses existing CCTV cameras to track and analyse customer movement and interaction.

Partnership will combine Nielsen’s data and analytics with Pointlogic’s planning software.

In-app ads are deemed annoying by 67% of British 16-24 year old app users, according to new research from Voxburner.

Follows launch of consumer panels in Nigeria, Kenya and Ghana earlier this year.