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BoosterX vs Optimizer: catalog facts
BoosterX	Optimizer
Free Free to download; the homepage does not mention a paid tier.	Free Free and open source, no longer developed.
Windows	Windows
Shows the current state of each setting and what will change Saved profiles can be reapplied after a Windows reinstall	Many privacy and performance tweaks in one portable program Available in 24 languages
Closed source and Windows only Performance gains depend on hardware and are claimed by the developer	Deprecated and archived; the author points users to OptimizerNXT System tweaks such as stopping updates or disabling Defender can leave Windows less secure
Downloadable app	Downloadable app
Closed source	Open source
License: Proprietary	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 26, 2026

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