When Instagram decided to update its Terms of Service for 2013 last December, it lost more than half of its users, according to the International Business Times, even after the company reneged on them a week later. 

Citing data from AppStats, an app traffic company, IBI reports that in mid-December Instagram had about 16.3 million daily active users, but by January 14 that number had dropped to about 7.6 million daily users. 

The backlash to Instagram's proposed amendment was fierce, as the company basically granted itself licensing rights to sell any photographs posted on the site. Sure, users could restrict the photos seen on the service, but there was no telling if they'd appear elsewhere, say in ad for parent company Facebook. 

The new Terms of Service are set to go in effect on Wednesday. 

[via International Business Times]