The app can be downloaded from the link above (it is not on Google Play because the policy introduced at the beginning of 2019 prevents the use of SMS sending and, therefore, it was not possible to publish it in that marketplace).
Purpose of use
Geolocation, geographical location transmission, people search
Description
Send, with an SMS, the coordinates and the corresponding link of Google Maps to allow the recipient an immediate and clear view of the position.
The application, more generally, is indicated in cases where it is necessary to communicate one's position or allow, only to those who are authorized, to detect the place where you are.
The device must be able to send SMS messages and the GPS coverage must be active; the availability of an Internet connection is strongly recommended but not essential.
The application basically does one thing (transmitting the geolocation) in two different ways.
The first, quite common, is to transmit, in the form of an SMS, the coordinates and the address corresponding to a telephone number chosen from the address book or typed in the appropriate field.
The second, a little less common, is to AUTOMATICALLY send a reply SMS:
upon arrival of a request SMS, containing a particular combination of characters in the text (three% symbols), received from a telephone number that has been granted authorization to check
following a missed call from a telephone number that has been authorized to check
For a number to be considered authorized to control it must have been registered by the device owner in a monitoring authorization table.
This precaution guarantees 100% privacy of the person on whose phone the application is installed.
If an SMS or a missed call is received from a number that has NOT been registered in the authorization table, NO ANSWER SMS WILL BE SENT
A field of use of this application, for example, is the verification, without disturbing, on the mobility of children by parents. It is sufficient, in fact, for the parent to send an SMS, with a text containing the character sequence %%%, to the child's mobile phone, to receive, without him even noticing, the address of the place where he find, the coordinates and the link of Google Maps to be able to view the place on the map.
Another field of application is the control of elderly people who, very often, cannot hear the phone ring.
IMPORTANT: the only device on which the app must be installed is the one that must be controlled; make sure you have provided all the required authorizations during installation.
The other features of the application are:
the list of SMS received (only those relating to the application)
Detection of the position (geolocation) with the display of the coordinates (latitude, longitude, altitude) and the address of the place where you are
Sending, via SMS, the position data and the link of Google Maps that the recipient can view through the corresponding application (Google Maps) or through a browser or other compatible application (for example Waze)