According to The People newspaper, ‘technical experts’ said the Grindr outage was caused by athletes and others trying to logon to the service all at the same time. Grindr works by displaying the 100 guys closest to you based on GPS data. The proximity of athletes in the Olympic village means that they are very close to one another.
One user told the newspaper: “It happened almost as soon as the teams got here. Either loads of athletes were logging on to meet fellow Olympians or were looking to bag a local.
“The Grindr system obviously couldn’t cope. It took 24 hours for the app to get back up and running, much to the relief of all concerned.” (thanks to Aaron Heier for the find)