A tipster is someone who gives advice or information, usually related to predicting the outcome of events such as sports competitions or horse races. Full definition
While it may have been possible that Apple has been working on two prototypes for the larger iPhone 7, the rumor has since been shot down several times, including by reliable tipster Evan Blass. (techtimes.com)
One of them was from an anonymous tipster who claimed to have photos of the person who fit the profile. (discovermagazine.com)
This time, the rumor comes from a well - known Nintendo tipster who also believes a reveal is coming next month. (shacknews.com)