Google One is described as 'Room to grow' and is an app in the Backup & Sync category. There are more than 100 alternatives to Google One for a variety of platforms, including Online / Web-based, Windows, Mac, iPhone and Android. The best alternative is Nextcloud, which is both free and Open Source. Other great apps like Google One are Dropbox (Freemium), Google Drive (Freemium), Syncthing (Free, Open Source) and MEGA (Freemium).
Pvtbox Sync allows direct, fast, and secure peer-2-peer data transfer between all of your devices including PC, Mac, Servers, NAS, and Mobile (Android & iOS). Sync/Share/Collaborate all your files with ease.
Qabel is a free, published-source cryptography platform. The platform encrypts everything that is connected with it end-to-end, including Messenger, e-mail, industrial applications and individual solutions.
It's compatible with Microsoft Office (Word, Excel, PowerPoint), Google Docs, Google Sheets, Google Slide & OpenOffice format. Trio Office can open & edit many kinds of files: [Text] • OpenDocument (.odt .ott .oth .odm ) • Open Office (.sxw .stw .