The Cartographer is an iPhone app that combines an antique map style with custom Google My Maps viewing and editing.
The unique selling point of The Cartographer has to be its unique antique map design but it also has a number of other useful features. The Cartographer syncs well with Google My Maps. You can create Google My Maps from your desktop and the resulting maps can be effortlessly accessed and edited on the iPhone.
Users can also access The Cartographer offline and so avoid data and roaming charges.