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macmon vs iStatistica Core: catalog facts
macmon	iStatistica Core
Free Free, with source published on GitHub.	Free The product page lists a download and no price.
macOS, Command line	macOS
No sudo needed, unlike powermetrics Shows CPU, GPU and Neural Engine power draw	Per-core frequency for P-cores, E-cores and GPU CPU, GPU and NPU power draw history
Apple Silicon Macs only Relies on a private macOS API that could change	Apple Silicon Macs only Requires macOS 13 or later
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
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 October 2, 2026

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