How to Passcode Lock Any App on Your Phone

How to Passcode Lock Any App on Your Phone

You are, we hope, already protecting your phone with a PIN, a fingerprint, or a face (or all three), but sometimes you'll want to add an extra barrier to particular apps—if you're lending your phone to a friend, say, or if your kids or partner are always borrowing your phone for whatever reason.


How you want to apply this additional protection is up to you. Some apps come with it built in; in other cases you'll need to enlist the help of a third-party app. The process is also different depending on whether you're using Android or iOS, and so we've split our guide up into two sections.


Locking Apps on iOS

Apple doesn't give third-party apps quite as much leeway on iOS as Google does on Android, so you won't find any general-purpose locking tools in the App Store. Instead, you're relying on the individual apps themselves—many apps that can hold sensitive information will give you additional options.


Apple's own Notes app for the iPhone is one example. You can lock individual notes by tapping the Share button (inside a note) or long-pressing on a note (on the notes list) and then choosing Lock Note. Notes are locked using Face ID, Touch ID, or a PIN code, and you can set this via Notes in the iOS Settings app.





You can lock Apple Notes individually on an iPhone.David Nield via Apple

WhatsApp has protections in place as well to keep prying eyes out of your messages. From the main screen, you need to tap Settings, Account, Privacy, and Screen Lock—you'll then be able to set up Touch ID or Face ID to guard access to your c ..

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