Autoshape Tool
SketchUp for iPad has something no other versions of SketchUp have access to - the Apple Pencil. We designed the AutoShape tool to take advantage of this diverse tool and provide you with even more ways to create awesome models.
Simply put, the AutoShape tool lets you draw common shapes and other pre-set geometry and add them to your model. Want a rectangle? Draw it. What about a box? Draw it. How about a circle on the side of that box? Draw it. AutoShape helps you to add basic geometry to your model without the need to switch tools.

Don't have an Apple Pencil? AutoShape also works with touch input! Just perform a long press then draw one of the AutoShape options just like you would with an Apple Pencil.
Note : AutoShape geometry will appear with the existing axes in mind. For example, the edges of a square drawn on the ground will be parallel to the red and green axes.