App to map routes with GPS to google maps?

[frentraken]

Is there any app, or even a way in google maps itself that I might have missed that will let me map out the route I take with GPS? I want to map my towns bus routes into personal maps so I can view them in google maps, rather than try and load the PDF ever time I want to check it on my phone. I also don't want to try and draw them manually in google maps on a computer since it's too finicky I've found.

So any help would be great.