While many parents blame Snapchat for keeping their kids engaged on phones for a very long time, the popular messaging app's Co-founder Evan Spiegel limits screen time for his seven-year-old stepchild, the media reported.

The 28-year-old billionaire, who is the CEO of Snapchat's parent company Snap Inc. allows his stepson, Flynn, 90 minutes of screen time a week, The Sunday Times reported.