The "2G" in the name typically refers to a secondary domain or a mirror site created after the original GoMovies was shut down or seized by authorities. Because these sites are constantly pursued by anti-piracy coalitions like the Alliance for Creativity and Entertainment (ACE), they change domains frequently (e.g., .to, .pe, .is, .cc).
If you have already downloaded and installed an APK claiming to be 2Gomovies, take these steps immediately: 2gomovies app