Perfect lock screen app for any android phone with Hi Locker

Default locker in the android phone is not so good and comes with low features. Well Hi locker is a perfect lock screen app for any android phone. Hi Locker interface is so good, you can remove emergency call button in your phone with this app.  Change lock screen interface to lollipop, classic, and iOS. You can set automatically unlock if you connect with your Home WiFi. This app automatically changes lock screen wallpaper after a period of time