Offtime is the latest in a line of apps and products looking to detach users from their screens.
RescueTime and QualityTime are two others apps that let you check your usage -- so you know, for instance, how much time you have spent watching videos on Facebook. Others, like Checky, tell you know how many times you've checked your phone.
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And some companies are taking it even further. Britain's Kovert Designs creates jewellery which connects to a smartphone and vibrates when you get a message.
This may seem like just another way of being connected, but founder Kate Unsworth told CNBC earlier this year that it can actually help people leave their phones aside and only be notified of important messages.
"Digital detoxing is a huge trend, mindfulness is a huge trend. The mindfulness space is really untapped," Unsworth said.