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Elaborate please...screenshot detection?

Haven't had the time to play much with this app, but if it's anything like Snapchat, the idea is to send photos that self-destruct after 5-10 seconds. Since there's absolutely no (known) way to actually prevent taking screenshots on iOS, the next best thing they implemented is "screenshot detection", which notifies the sender that the recipient did take a screenshot.

Nor is there a way to keep people from taking a picture of an iPhone screen with a secondary camera. The promise of "self-destructing" pictures seems like a disaster waiting to happen.

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