Rio de Janeiro is sporting some grim but brilliant billboards in an attempt to tackle the Zika virus currently spreading across the country. Created by marketing agency NBS, the advertising boards lure virus-carrying mosquitoes, trapping them for a very public death.

The Apple App Store houses over one million apps. Despite once trying to do everything, apps are now being split into single purpose platforms. But how do people actually use them? And which is more useful – the Swiss Army knife approach or a tailored, single purpose app?

Two British expats are helping non-locals find their way around Rio de Janeiro during the 2016 Olympics with the Rio Companion app. But rather than just focusing on pleasure, it also seeks to address a specific issue – safety. And it's got athletes at the centre of its offering.

Tucked into the pockets of 44 million people in the US alone, iPhones have become our lives – and now they could save them, too. Apple’s ResearchKit is a platform for creating apps that collect medical data and it's got potential to completely alter personalised medicine and mobile health.