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Thor vs Charmstone: catalog facts
Thor	Charmstone
Free Free and open source, also available from the Mac App Store.	Paid Sold through the Mac App Store and direct download; check the store for the price.
macOS	macOS
One shortcut per app for instant switching Available from the Mac App Store	Switches apps with one modifier key combination Uses spatial memory for quicker app focus
Only launches and switches apps; no search or actions macOS only	macOS only Price not shown on the homepage
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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