[netsharc]

I have a suspicion as well that this is what they're doing: before the message is encrypted and sent, the app (on your phone) does analysis and picks out keywords relevant for advertising. So they can claim and be technically correct that they are not reading your messages. Although if their algorithm is doing it on your phone, is it... reading?

Or they can say, technically it wasn't a message before it was sent. The dictionary definition[1] even mentions "send".

[1] https://www.oxfordlearnersdictionaries.com/definition/englis...

[Melatonic]

This is definitely the most likely scenario in my opinion