Google Drive is described as 'Cloud service for file storage and sync, integrated with Google Docs suite, facilitating collaboration and offering scalable storage solutions' and is a leading Cloud Storage service in the backup & sync category. There are more than 100 alternatives to Google Drive for a variety of platforms, including Web-based, Windows, iPhone, Mac and Android apps. The best Google Drive alternative is Nextcloud, which is both free and Open Source. Other great apps like Google Drive are Dropbox, MEGA, Syncthing and ownCloud.
It didn't let me create an account, saying it isn't available in my region (Brazil).