In the Studio view my UI’s look like what I want them to but In-game view that look way different and very ugly. You can see the issue by looking at the screenshots below.
If it is the text which is the issue, you need to set the text label or whatever contains the text, to have text scaled on. This means when the Gui is loaded on smaller screens, the text will scale to fit the Gui as it would do if it was on another device.
Also, make sure that you are using scale instead of offset for the frames and or Gui itself otherwise that could cause problems for different devices.
Try the one linked here to solve your issues if it’s the not the same one posted
And to use it is simple, select on al lthe GUIs you want to convert size and position, open the Plugin Widget, and click on Scale for both Size and Position, simple