Kevin Holesh, a 25-year-old iOS developer, launched an app in April that lets you track your phone usage. It can tell you how many minutes you spend on your phone each day, along with how many times you unlock it.

The app called Moment costs $4.99 will allow you to set a limit on your usage and alert you when you have reached that limit.

Holesh said: "Right away, I noticed that I was way off in my own estimation."

“There’s a perception when you’re using your phone that time goes by fairly quickly,” he said. “You can easily burn 15 minutes on Twitter and have it feel like five.” Using the beta version of Moment, Holesh was able to cut his daily use back to around 60 minutes a day on weekdays and 10 minutes a day on weekends -- a number he said he’s happy with as someone who uses his phone for work.

“I definitely reduced my own usage,” he said. “Just by having a statistic, it allows you to make a change.”