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Snapchat's Snapstreak feature has become one of the most specifically discussed engagement mechanisms in the litigation over social media and adolescent mental health.
A Streak creates an ongoing obligation between two users who must exchange Snaps within a recurring window to keep their count alive.
Plaintiffs in the federal litigation argue this turns everyday communication into a recurring task teens feel pressured to complete.
A Snapstreak tracks consecutive days on which two users exchange Snaps, and the number climbs for as long as the exchange continues. Researchers who study adolescent Snapchat use describe Streaks as gamification, where features like scores, challenges and ongoing achievements get built into a communication tool. One peer-reviewed study of Viennese adolescents found that maintaining Streaks shaped both when teens communicated and what they sent, including messages whose only purpose was preserving the count.
Snapchat is named alongside Facebook, Instagram, TikTok and YouTube in MDL 3047, In re Social Media Adolescent Addiction/Personal Injury Products Liability Litigation. The Amended Master Complaint alleges several things about how Snapchat operates:
The complaint also points to an internal Meta document describing Streaks as an important way teens stay connected and as addictive, though that characterization comes from Meta's own review rather than a statement from Snap.
Behavioral researchers point to loss aversion, the tendency to weigh losing something already owned more heavily than gaining something new, as central to how Streaks function. A user who has built a Streak from 3 days to 500 days has something concrete at stake, and plaintiffs allege the platform leverages that investment to drive continued use. Some teens reportedly shared passwords with friends so someone could send a Snap on their behalf while they were unavailable, according to the complaint.
The litigation extends well beyond Streaks. The Master Complaint identifies a broader set of features plaintiffs say work together to encourage prolonged engagement:
Plaintiffs describe these as part of a variable reward system, where a user never knows in advance what they'll get back from opening the app, whether that's a new Snap, a Streak milestone, a Trophy or social validation. That unpredictability, they argue, is what keeps users checking the platform on a near-constant basis.
The personal injury claims connect Snapchat's design choices to harms reported in affected families, including anxiety, depression, disordered eating, sleep deprivation, self-harm and suicide. These remain allegations, and courts have treated Snapchat-specific claims on a feature-by-feature basis rather than issuing a blanket ruling. Causation in any individual case depends on medical history, usage patterns and other factors requiring case-specific evaluation.
Snap's further requests to dismiss Snapchat-specific claims were denied by the MDL court in November 2023, but other theories under Section 230 and First Amendment doctrine were narrowed. Claims tied to features like Streaks and notifications are moving forward, even as the broader litigation remains in early stages across many individual cases.
If your teenager developed a diagnosed mental health condition, required therapy or hospitalization, or experienced other serious harm connected to compulsive Snapchat use, you may have grounds for a social media addiction claim. Our team has spent more than 35 years helping families determine whether their case qualifies and connecting them with attorneys prepared to pursue it. Contact Atraxia Law today for a free and confidential case evaluation.