LibreOffice - Free office suite, open source, and compatible with .doc, .docx, .xls, .xlsx, .ppt, .pptx files. Updated regularly – download for free. Originally based on OpenOffice.org.
Gmail - Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
Microsoft 365 - Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online
ProtonMail - Secure email with absolutely no compromises. Get your free encrypted email account today.
ONLYOFFICE - ONLYOFFICE is a complete office and productivity suite.
GMX - GMX Mail is a German-based free webmail service provided by GMX (Global Mail Exchange).