I've tried Catch Notes and My Tracks. They both seem to be excellent apps, but I'm not sure they do exactly what I need.
Catch Notes seems to store location information internally (it is able to display on a map those notes which have position tags), but I can't see how to export the location information for use outside the program. If I export notes to the SD card or if I "share" a note via email only the text seems to be exported.
My Tracks seems better in this respect. Although the "Send to ... Google My Maps" feature seems to be broken (with the "deprecation" of Google's Android Maps Editor), it is possible to "Share" a track via email in the form of a kml file which can be imported into My Maps (on a PC).
However, I can't see how, in either program, to create a placemark (or note or marker or waypoint) at any point other than the current location. What I want to be able to do is stand in a street, look over the road or down to the other end of the street at a place of interest, locate it on the map and create a placemark there.
Have I overlooked anything relevant?