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Speccy vs SIW: catalog facts
Speccy	SIW
Freemium A free version is available. Speccy Professional is a paid licence.	Paid Commercial software; check the developer site for current editions and prices.
Windows	Windows
One page answers what hardware is in the machine and how hot it is Snapshots can be saved or shared when asking for help	Covers hardware, software and network in one place Shows product keys and software licences
Development has slowed considerably The Professional edition with automatic updates is paid	Windows only Closed source
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is 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.