It has some benefits:
- Send precise location determined by GPS
- Work without Internet
- Work on devices with Android 6
- Work on devices from Mui, Huaway and e.t.c that have "protected app list" and block to start app after reboot,
- Continue work after reboot,
- Use link to Google maps in modern 2017 format
- Free and Open source,
- There are no ADS in it
And some constrain:
- Need device with GPS
- Determining precise location take time
How it works:
On first run, you setup pass-phrase. After you can sent SMS to this phone from another with this pass-phrase. In response you receive two sms link to Google maps, pointed to location of phone:
- First with last-known may by coarse location of a phone;
- Second with fine location determined by GPS
You can get source code here:
https://github.com/Gan4x4/sms_locator/
Remove localization of SMS messages to decrease it count