9 Apps to Boost Your Phone’s Security and Privacy

Obviously you’re going to need more than one device here—one to do the video recording and another to watch the feed from wherever you happen to be—but Alfred offers all the features you’ll need, including motion detection, two-way audio, and a built-in siren.

Alfred Home Security Camera for Android and iOS (Freemium)

Twilio Authy

We’ve written about the importance of two-factor authentication (2FA) many times, but we’re not going to stop mentioning it—it makes a huge difference to the security of your online accounts, and Authy is one of the best tools for the job of managing your 2FA codes.

Adding new accounts is easy, and so is generating login codes, and so is moving Authy between devices, all of which makes 2FA as stress-free as it should be. It’ll work with a whole host of accounts, including Google, Microsoft, Facebook, Evernote, and Dropbox.

Twilio Authy for Android and iOS (Free)

Firefox Focus

There are privacy-focused browsers, and then there’s Firefox Focus—a browser that blocks ads and trackers by default, leaving you with a fast, secure, and mostly untracked browsing experience (though be aware of the limits of this type of locked-down browsing).