There sort of are "burn after reading" voice messages. After they're played once, they're removed after 2 minutes.
The recipient can tap "Keep" to permanently save the audio. This returns to the sender the prone-to-misinterpretation warning, "So-and-so kept a message from you."
The "Keep" function is actually an important signal here to the user that breaks the expectation that disappearing messages are unassailable. The recipient can always make a copy.
The recipient can tap "Keep" to permanently save the audio. This returns to the sender the prone-to-misinterpretation warning, "So-and-so kept a message from you."
The "Keep" function is actually an important signal here to the user that breaks the expectation that disappearing messages are unassailable. The recipient can always make a copy.