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Optimizer vs DoNotSpy11: catalog facts
Optimizer	DoNotSpy11
Free Free and open source, no longer developed.	Free Free download from the developer's site.
Windows	Windows
Many privacy and performance tweaks in one portable program Available in 24 languages	Covers Windows, Edge and Office privacy settings in one place Includes Windows AI settings
Deprecated and archived; the author points users to OptimizerNXT System tweaks such as stopping updates or disabling Defender can leave Windows less secure	Windows only Changing system settings can affect updates or features you rely on
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 24, 2026

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