地図通信 Free

Members share location information and show each other's location on the map.
Location information is updated at regular intervals, and you can check the movement of members in real time.

You can read location information sent by "location communication" of the Android application.

Requires a user and member's Gmail account.
I use Google Drive.
There is no need to operate Google Drive directly.
Only one member can register in the Free version.
In the Free version, the member's location information update interval is at least 1 minute.

Compatible with Android 4.0 or higher.