Who's talking about after the fact? You can consent to sex, then change your mind in the course of things. Maybe you just stop wanting to have sex, maybe your p

Who's talking about after the fact? You can consent to sex, then change your mind in the course of things. Maybe you just stop wanting to have sex, maybe your partner starts going into territory you're uncomfortable with, doesn't really matter. An app where you give consent beforehand can't handle real life.