OnlyOffice
fully featured tools with apps on most platforms, but staff and ownership are Russian
Features
Own Software Provided
Purchase and own the software permanently
Online Service
Web-based access without software installation
AI Office Assistant
Integrated AI helper that works alongside office tools
Platforms
Browser
Accessible through any web browser
Windows
Compatible with Windows computers
Mac OS
Compatible with macOS computers
Linux
Compatible with Linux computers
Android
Available on any Android devices
iOS
Available on any iOS devices
Warning
It is believed that most of OnlyOffice staff and ownership is based in Russia. The project is open-sourced so for those concerned about supporting Russia or data security, there are other providers who can b used instead