App Lock can lock Facebook, WhatsApp, Gallery, Messenger, Snapchat, Instagram, SMS, Contacts, Gmail, Settings, incoming calls and any app you choose . Prevent unauthorized access and guard privacy. Ensure security. AppLock is a light app protector tool to protect your privacy in mobile apps. With App lock, your apps are protected quickly. You can change the password whenever you want. Best of all, you no longer have to worry about your personal information being revealed when using Fingerprin