App locks let you protect individual applications on your phone or tablet with a separate password, PIN, or biometric lock. Rather than securing your entire device, an app lock guards specific apps—like banking, email, or messaging—so that even if someone picks up your unlocked phone, they cannot open those particular applications without entering the correct credentials. This adds a layer of protection for your most sensitive accounts and information.
The articles here walk through how app locks work across different devices, which apps are worth protecting, and the step-by-step process for setting up and managing passwords for individual applications. You'll learn where to find these settings, what authentication methods your device supports, and how to troubleshoot if you forget a password or need to change one.