Certain applications only work with specific geopositioning coordinates or certain products can only be purchased according to the latter (for instance, home delivery services or augmented reality games of the likes of Pokémon GO). If you need to modify your geolocation, you can do so by resorting to an app of the likes of FGL Pro for Android.
Fake your GPS location by simply modifying a setting
This app offers us the possibility to use it as a reference when it comes to establishing our GPS coordinates which can be modified whenever we want. In other words, we can use the correct one or introduce any other one of our choice. So, if you're playing Pokémon GO and you can't find Pikachu in your area, no problem, just change the coordinates and find it anywhere else without having to move around physically.
However, using this application does have a few drawbacks: it doesn't work on versions of Google Play Services after 2017, therefore, we have to uninstall the app and search for an earlier version...