Regarding to improve Some Features
1. There is option to hide the apps and to access them while they are hidden is just to unhide and use them and again to hide them. You should just improve a way where we can access those hide apps bu using gestures or some other way.
2. There is a feature to lock apps but there must be some improvements in locking apps.
i.e. The apps must be locked when screen is off and not to lock instantly when we close the app and also not to unlock all apps when we unlock one app.