A method and user device for limiting a time for which location data sharing is enabled for a user device of a data sharing group, the data sharing group comprising at least two user devices inclusive of the user device, each user device of the data sharing group configured to store data shared by user devices of the data sharing group on the respective user device and to maintain a list of the user devices in the data sharing group. The method comprises receiving an instruction through a user interface on the user device indicating that location data sharing is to be enabled for a limited time period after which location sharing is to be disabled, obtaining location data for the user device during the limited time period; and sending the location data to at least one other user device of the sharing group during the limited time period.