What are some alternatives?
When comparing E-Robot and ApowerREC, you can also consider the following products
Tasker - Tasker is an application for Android which performs Tasks (sets of Actions) based on Contexts...
ScreenCam - Lightweight and functional screen recorder with no ads, no limits.
Automate - Automate various tasks on your Android smartphone or tablet.
Screen Recorder - Screen recorder is a free screen recorder software for Windows environment.Screen Recorder Records user specified part of Windows desktop screen as an AVI file.
MacroDroid - MacroDroid - Automation for your Android Device
Apowersoft Android Recorder - Apowersoft Android Recorder allows you to mirror Android screen to computer, take screenshot and record Android Screen along with audio.