I found a few but nothing I liked better than my spreadsheet. I log dates, start points, end points, maintenance, mileage, etc... I'd love to have an app I could use gps, post pictures, etc... There a $100 idea. You know any developers?
I just use a cute journal I found at the book store. I did a template page at the front so I would have a consistent layout of information like dates, location, site, fees, services, who we went with etc. I'm not dependent on cellular or wifi coverage and then I just stash the book in a cupboard in the trailer so I don't forget it 😃