Thanks for the kind words about
Gmap4. I am the developer of that browser app.
Gmap4 is a browser app, not a native app. Gmap4 runs in most browsers on most devices from smartphones to desktops. Note that the browser does have to be online in order to start the software. When Gmap4 is running in the browser on a smartphone or other mobile device it automatically shows you a touch-friendly interface.
There are three ways to access different features.
1. The “Menu” button lets you search, geolocate, change the coordinate format, get the declination and do various other things.
2. The other button always displays the name of the current basemap. This button lets you change the basemap and also turn GIS overlays on/off.
3. A rightclick anywhere on the map will display the coordinates in several formats for the point you clicked.
The
Menu ==> "Draw and Save" feature lets you add data to the map and then save your data as either a GPX file or a delimited text file. You can also use the
map-in-a-link feature to save your data right in the Gmap4 link itself and not have to bother with any data file.
Gmap4 can display these types of files: GPX, TPO, KML, KMZ, Google MyMap, and a delimited file format.
The Gmap4 homepage has a FAQ, examples, quick start info (on the Help page) and more to quickly get you up to speed.
One of the articles on the Help page shows you how to use Gmap4 on your smartphone offline.
Gmap4 default map:
http://www.mappingsupport.com/p/gmap4.php
Gmap4 homepage:
http://www.mappingsupport.com/p/gmap4.html
Joseph, the Gmap4 guy
Redmond, WA