To lock WhatsApp on Android, launch the app, tap the three-dot menu, navigate to Settings > Privacy > App Lock, and turn on "Unlock With Biometric." To lock WhatsApp ...

Android lets you protect your device by creating a password, PIN or gesture lock to keep people from using your phone without your permission. But what if you don’t want to secure your entire device?

Apps are something we access on a daily basis, either through our smartphones or tablets. We might use an app to monitor the weather, to track our fitness, to keep a to-do list, to look at photos we ...

Guide When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. One of the app categories Apple is trying to 'Sherlock' this year is app locker. The ...

Forbes contributors publish independent expert analyses and insights. Zak Doffman writes about security, surveillance and privacy. Updated on Jan. 13 with further updates on locking apps on Android.