Most of other company smartphone have this option of inbuilt app lock.. that will make less effort for user to download third party app.. these apps consumes battery too. so we are expecting inbuilt app lock.. atleast midrange phone dont have it..( mine galexy j7 6)
Thanks for being with Samsung and sharing your concern. We would like to inform you that as you are asking about the inbuilt app lock let me tell you about the S Secure it is for files security in which you can keep your apps and files secure. If this application is not available currently in your device please do download it from the Galaxy App search it as Secure folder.