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Sessions vs Deep Dive: catalog facts
Sessions	Deep Dive
Free Free and open source under the AGPL-3.0-or-later licence.	Free Free and open source under the GPL-3.0-or-later licence, with optional donations.
Linux	Linux
Customizable work and break durations Minimal, distraction-free interface	Pomodoro timer and free-running stopwatch in one app OS-level website blocking during focus sessions
Linux only No task tracking or statistics mentioned	Designed for GNOME on Linux only Blocking is tied to the app rather than browser-specific rules
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0-or-later	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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