In theory you could just: - Write your own mobile app that has access to fine grained location, logs it, and periodically uploads the location trace to your o

In theory you could just: - Write your own mobile app that has access to fine grained location, logs it, and periodically uploads the location trace to your own server. - Download the traces from your server and convert them to an appropriate format. - Upload the traces to Google MyMaps - or use a map rendering engine you control if avoiding 3rd party online services is a goal - for visualization By doing this you give up additional features provided by Google Location history - things like semantic place detections (i.e you were at airport X or mall Y) trace error correction, auto-segmentation of traces, etc. But if all you care about is a seeing a trace on a map, then that should work. This general approach is already widely used by software that has an external location logging system (i.e. wildlife tracking transmitters, commercial vehicle fleet tracking) but need to visualize/track those on a map. Disclosure: Google employee but not currently working on Maps.