Advertisers in the U.S., UK and Germany are either using (66%), or experimenting with (28%) mobile measurement routinely, according to a new AppsFlyer and IDC survey. At the same time they are concerned (69%) about privacy violations, the risk of revenue and reputation loss, and about fines. The survey also found that the toughest punishments were given to U.S. companies (4.4%), a number roughly double either the UK or Germany.