Google is celebrating its 20th anniversary – and the internet has become an inseparable part of the lives of adults, teens, and children. In awareness of the problems and challenges posed by the new world, various software programs have been developed, among them NetSpark (henceforth: the program), which make it possible to block and/or filter information received from the web (Wells and Lewis, 2006). In several Israeli schools, the management has decided to install a filter in their students' cellular devices in order to maintain safe surfing even after school hours. The option of blocking or filtering websites on school computers existed previously, but the innovation offered by the current program is the possibility of screening inappropriate content on students' smartphones. The study examined the association between installing the program on smartphones and utilization of leisure time among 120 female high school students, half of whom used the program. The association between use of the program and the students' sociodemographic background, smartphone use patterns, and utilization of leisure time was examined.