No, I prefer using an alternative (let us know which in the comments).
There was once a time when Google offered users an app to create custom maps, but those days are long gone. Now, Google limits its My Map tool to web browsers. While you can view custom maps via the Google Maps app on Android, you can only create and edit maps via its web portal. It's clunky and makes custom map creation a little more tedious than it really should be. Google really is wasting a clear opportunity to reinvent My Maps within the Google Maps framework.