According to graphic designer Tynan Humphrey, the old font appeared to be Helvetica while the new font looks like Avenir. “It’s a little lighter, and a bit more geometric than the old font,” he told the Daily Dot.
Snapchat changed one of their app’s fonts and hilarity ensued. Click to read the DailyDot article: Snapchat changed its font and now life just doesn’t make sense anymore
Hat tip to MrMild.