I’m stuck on free viewer

I want to get normal SketchUp free but I’m stuck with the viewer and I can’t change it, pls help
Im on iPad app btw

SketchUp free does not allow you to use SketchUp for iPad. You need at least a SketchUp Go subscription plan:
3D Modeling Software Price Comparison | Design Tools & Features List | SketchUp

You may try to use webapp in your browser https://app.sketchup.com/app (I’m not sure how it will work on tablet…)