With its filters and self-destructive photos and videos, Snapchat seems to be the social media tool of choice these days.
Almost 160 million people talk to each other through the app each and every day.
But a new update to the Snapchat app has raised a few privacy concerns, as it enables users to exactly pinpoint where your contacts physically are - anywhere, at any time.
Seven Sharp reporter Rebecca Edwards investigated for herself how accurate this contact tracking function was, and just how invasive it might be.
Watch the video to find out more.
Irene King analyses a report that found people flying out of Auckland to some international destinations would pay more than if they had flown out of Australia through Auckland on the same flight.