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I'm not a Snapchat user but doesn't that app, at least on Android, alert senders when a receiver takes a screenshot? You can still take a picture with a second device and that functionality isn't totally portable, but interesting feature. Do you think that concept has any utility here?

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if someones determined they'll root their android and capture them anyway.

I think it's a great feature if you think of it (exploding messages) not as an assurance against someone who shouldn't be trusted, but that they won't forget to clean the trash.

Good thing there are no other devices in the world that can take a picture of another devices screen. /s

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