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FPS Monitor vs OCAT: catalog facts
FPS Monitor	OCAT
Freemium Pricing details were not stated in the research.	Free The open-source application is available without a license fee.
Windows	Windows
Shows FPS and hardware sensors together in the game Highly configurable overlay per sensor	Per-frame CSV output, not just an average frame rate Works across D3D11, D3D12 and Vulkan
Windows only Closed source	Windows only Upstream activity is limited
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 22, 2026

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