Called 'Lock n' LoL' (Lock Your Smartphone and Laugh Out Loud) and developed by researchers from the Korea Advanced Institute of Science and Technology (KAIST) in Daejeon, South Korea, the app helps people restrain themselves from using smart phones during meetings or social gatherings.

It allows users to create a new room or join an existing room. The users then invite meeting participants or friends to the room and share its ID with them to enact the Group Limit (lock) mode. When phones are in the lock mode, all alarms and notifications are automatically muted and users must ask permission to unlock their phones.

The students were able to focus more on their group activities.'In an age of the 'Internet of Things', we expect that the adverse effects of mobile distractions and addictions will emerge as a social concern, and our Lock n' LoL is a key effort to address this issue, 'he noted.The 'Lock n' LoL' also displays important statistics to monitor users' behavior such as the current week's total limit time, the weekly average usage time, top friends ranked by time spent together and top activities in which the users participated.