Some of those apps tackle the same tasks as the ones preloaded on your smartphone: calendar, contacts or notes, for example – but with better design and extra features. When it comes to work and personal productivity, every little improvement can make a difference, which is why productivity is one of the busiest categories on Google and Apple’s app stores. During the Covid-19 lockdown, students and homeworkers alike have been discovering how apps from the likes of Zoom, Slack and Google have made collaboration and remote working possible.