15 GB storage free forever (shared with Gmail + Google Photos)
Custom domains
n/a
Note
The most generous free cloud-storage tier of the big four — Google Drive gives 15 GB free per Google account, shared across Drive, Gmail, and Google Photos, with built-in Google Docs/Sheets/Slides collaboration, real-time co-editing, and sharing links. Paid Google One from ~$1.99/mo (100 GB), ~$2.99/mo (200 GB), or ~$9.99/mo (2 TB) shared with the family. No real desktop sync app, but the web + mobile apps are best-in-class.