How it works: people post videos or pictures then people go watch your video or pictures also, you can follow other people.
Pros: you can ring people internationally for free via the internet/wifi. It can be used to reconnect with old friends and to keep in touch with friends a long distance e.g. who have moved to another country.
Cons: User age is 13+ but this is very young and children may not be mature enough to safely and sensible use a social media app such as this at this age.
How to be stay safe: put your account on the hieghest privacy settings so that people you don’t know and aren’t connected with can’t see the content you upload on your account to keep you safe from unknown strangers online.