I can&#x27;t imagine why I&#x27;d want a separate messaging app that I only use for family members, or why I wouldn&#x27;t just use Trello&#x2F;Trello-clones for tasklists, but that location tracking part sounds cool. Right now I use Google Latitude for that, or whatever it has been renamed to within G+. But their location sharing&#x2F;tracking service has been ignored for years and sucks as a result.