Snap is the default chat app in high schools in the US. The second is Instagram. The third is a fallback to SMS / iMessage. I personally have never seen a teen using a third party chat app (like Whatsapp/Telegram/Signal/etc).
(I have 14 & 16 year olds, neither of whom have social media. It really is unpleasant for them sometimes, trying to keep up with JIT event logistics carried out on Snap.)
(I have 14 & 16 year olds, neither of whom have social media. It really is unpleasant for them sometimes, trying to keep up with JIT event logistics carried out on Snap.)