Compare software

Flowkeeper vs Mater: catalog facts
Flowkeeper	Mater
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source under the MIT licence.
Windows, macOS, Linux	macOS
Provides keyboard shortcuts and configurable work sessions.	Unobtrusive menu bar interface Time can be adjusted by dragging while running
It is a focus timer rather than a full project-management system.	macOS only No published GitHub releases
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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