Smartphone penetration is at an all-time high, offering brands a new gateway into the heart of the consumer. However a large proportion of mobile advertising is underwhelming and mobile strategies really need kicking into shape, or brands risk losing consumers for good. So what should a good mobile strategy entail? Claire Spencer, head of insight at UM London, investigates.

Claire Spencer, Insights Director, UM London, looks at the ways to exploit the growing trend of multi-screen viewing.