I can't scale my gui's correctly?

I somewhat understand scaling gui's across all devices, except i'm clearly doing it wrong because Its still weird on most mobile devices. Here's what i've done

please note: i don't actually have any scripts

In order to scale Gui's, you need to use UIAspectRatioConstraints, or at least to my understanding. Im using scale, not offset, but its still not scaling correctly.

On computer screens,its scaling perfectly fine, but on mobile devices such as IPad mini, IPhone4S and a lot more devices, the sizes are messed up, and arent fullying covering the screen (this GUI is a loading gui, but I will need to know this for future gui scaling as well)

Gui's

Heres exactly what the gui consists of

StarterGui
	Loading
		Main
			UIAspectRatioConstraint
			Imagelabel
			loading (textlabel)
			version (textlabel)
		Play (Imagebutton)
			UIAspectRatioConstraint
			LocalScript
		ImageLabel
		UIAspectRatioConstraints

If you can help, thank you very much! If you need clarification just comment or message me on discord @Ozzisiya#3532