As we know our data and our chats is must need privacy. That's why RjAppsStudio Develop this one of the best App Locker App. Free App Locker is must have an app that every Android phone user should have to protect their personal data and provide the app locking function. With this Data Lock App, you can lock your Facebook, Whatsapp, Instagram, Gallery, Messenger, Snapchat, SMS, Contacts, Gmail, Settings and any app you choose a password or pattern lock. With this Android App Locker app, Now you can secure individual apps with just one password and you don't need to worry about your private information on your phone.