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Letters vs WPS Office: catalog facts
Letters	WPS Office
Free Free and open source under the GPL-3.0-or-later licence.	Freemium A free ad-supported version is available. Premium is a paid subscription.
Linux	Windows, macOS, Linux, Android, iOS
Designed to fit the GNOME desktop Available as a Flatpak from Flathub	Among the most faithful non-Microsoft renderers of Office documents One of the few full office suites with a maintained Linux build
Very new project, started in 2026 Linux only	The free version shows advertisements and pushes cloud features Closed source, with a history of privacy concerns
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.