With the exception of Math Learner, our Services are not directed to children (under 13 in the US, under 16 for EU residents, or other age as required by local law), and the Services do not knowingly collect Personal Data from children.</p> <p>When a user indicates they are under 13 (or the applicable age in their territory), we take actions such as limiting their access to certain features, such as social media plug-ins, chat features, and certain types of notification alerts, and limiting the collection and sharing of personal information to only what is necessary to support the internal operations of our Services. </p> <p>