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Termius vs PuTTY-CAC: catalog facts
Termius	PuTTY-CAC
Freemium Pricing details were not captured; check the site for current plans.	Free Free to download from the project's GitHub releases page.
Windows, macOS, Linux, Android, iOS	Windows
Apps for desktop and mobile platforms Syncs hosts, keys and snippets between devices	SSH login with smart cards, CAC cards and certificates FIDO key support, including YubiKeys and passkeys
Proprietary software Syncing depends on the vendor's service	Windows only Interface keeps PuTTY's dated configuration dialogs
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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