WhatsApp is end to end encrypted so is relatively private but for those occasions where you want to send someone a message that will evaporate, you could be in luck.
WhatsApp is pretty straight app – it does messaging well and the design has barely ever changed. Status updates were introduced and completely flopped. If the app gains disappearing messages it’ll more likely succeed seeing as it’s a text-first feature that works in the context of the app.
The below screenshot shows the odd two expiration time options of 5 seconds or an hour. We’d think that these would change before it is released. The settings menu also shows that this might be an option that only works in group chats rather than direct messages to one person.