I made the Chrome/Chromium Extension “IP Geolocator” also available for Android. You can find it on the PlayStore.
This app shows your current IP address and geolocational information about it.
It also notifies you, if you have a broken VPN or proxy connection, when the country-code and/or IP address changes unexpectedly. You can set an alert with a special ringtone and or vibration.
You can also display your IP position in Google Maps or check for DNS leaks via browser (external service).
Please note, that the information about your location are fetched out of a database and may not be the same as your real location. This app shows your location like the websites would match your IP to any location.