Floods. Thieves. Hackers. Tackle any situation abroad with these mobile assistants. Place calls and send texts with end-to-end encryption over Wi-Fi or your data connection using this favorite of security professionals. You can also make your chat history disappear before customs agents (or other snoops) get their hands on your phone. Free You just fell down the stairs of your Barcelona Airbnb, and it feels like you broke something. No need to panic if you have this app.

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