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PowerISO vs UltraISO: catalog facts
PowerISO	UltraISO
Freemium Offered as a free download; paid licensing details are not described on the homepage.	Paid Costs $29.95 USD, with a free trial available.
Windows	Windows
Mounts disc images as virtual drives Creates bootable USB drives, including Windows to USB	Edits ISO images directly without extracting and rebuilding Creates bootable CD and DVD images
Closed source Many features overlap with free tools such as 7-Zip and Rufus	Paid license required after the trial Windows only
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License: Proprietary
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.