20 security and privacy apps for Androids and iPhones

Encrypted storage, malware scanners, missing-phone-finders and more: Here are 20 apps to help protect your smartphone, your privacy and your data.
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HiddenEye

HiddenEye Plus uses your smartphone's camera in self-defense: This app photographs any person who tries to unlock your phone.

Available for: Android

Cost: Free

Average marketplace rating: 3.9 stars

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