Snapchat mechanics explained from Snapchat's own documentation — how Snap Score is actually calculated, what keeps a streak alive, what a restore really costs, and what any of it does for an audience.
Most guides say chats and Stories count toward a Snapstreak. Snapchat's own help centre says the opposite. Here is what Snapchat actually documents about streaks, expiry and restores — including the one free restore nobody mentions.
Snapchat publishes three facts about the Snapscore and deliberately withholds the rest. That gap is filled with guesses, including a popular one that reads a friend's private activity from the size of an increase. Here is what the documentation supports, and what it rules out.