This is a new service that Google is implementing to centralize the management of the storage space you contract in your Google account, which is later applied to Google Drive, Photos and Gmail.

Google One is the name with which Google has decided to emancipate its storage service. Until now, when you contracted storage with Google you did so through Google Drive, without this storage having an independent or differentiated nomenclature from these services. It was just Google Drive or Google storage without anything else.

ut in May 2018, Google announced that it was going to change the name of its storage system to Google One, and that this change would be accompanied by price reductions and new rates. The storage of this service will be the one you use in all your Google products, so if you have contracted for example 100 GB, these will be distributed between Google Drive, Google Photos and Gmail as was the case until now with their previous plans. Furthermore, to use Google One you do not have to register anywhere, since the data is migrated directly from Google Drive and the storage you have contracted there. Currently Google One is only accessible to users who already have a storage plan with Google Drive. However, on their website they mention that there will be a definitive launch in the coming months, and they even invite you to register to receive news about the service.