What are some alternatives?
When comparing ScreenCam and E-Robot, you can also consider the following products
Apowersoft Android Recorder - Apowersoft Android Recorder allows you to mirror Android screen to computer, take screenshot and record Android Screen along with audio.
Tasker - Tasker is an application for Android which performs Tasks (sets of Actions) based on Contexts...
ScreenJot - A Easy way to Screen recording while doing screen control + drawing on screen at the same time
Automate - Automate various tasks on your Android smartphone or tablet.
ApowerREC - ApowerREC is a cross-platform screen recording software that can be used to record anything shown on your screen of Windows, Mac, Android and iOS devices.
MacroDroid - MacroDroid - Automation for your Android Device