Prerequisites:
1. Enable Unknown sources at Settings > Security
2. Internet access on your device
3. Google Location Service turned on (GPS is not required)
4. You don't need to sign in, just type your email and double tap!!!
Features:
1. After every 30 minutes, you will get an email at your configured Google address with the user’s location
2. Includes Latitude and Longitude
3. Hides automatically from the app menu
4. Background service turns on and off automatically
5. Auto restart after every reboot
Check your email after signing in. Don't panic if you don't get the email. Just reboot or wait.