How to open apps on startup

[OM2]

How do I open specific apps on startup?

Like for example, I might have an always stay on app to keep the screen alive.
I want this to always start when the phone or tablet starts.

Is this possible?

Thanks.

 

[MrJavi]

The app would have to have either pre-boot and/or boot complete recievers within the app themselfs.

You may also have a phone setting called "auto start"

 

[PitCarver]

Try macrodroid.
https://play.google.com/store/apps/details?id=com.arlosoft.macrodroid

 

[OM2]

Thanks for the replies guys
Macrdroid: I'll give that a go