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AltTab vs rcmd: catalog facts
AltTab	rcmd
Free The software is free under its open-source licence. Hosting, hardware and external…	Freemium Free download, with an rcmd Pro lifetime licence for 15 euros.
macOS	macOS
It switches between individual windows with live thumbnail previews instead of macOS's application-level switcher, with…	Switches to an app with one key combination Works without setup thanks to automatic letter assignment
It needs screen recording and accessibility permissions, and thumbnail previews cost some memory on a busy desktop.	macOS only Some features need the paid Pro licence
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
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 September 24, 2026

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