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macmon vs btop++: catalog facts
macmon	btop++
Free Free, with source published on GitHub.	Free Free and open source, funded by donations.
macOS, Command line	macOS, Linux, Command line
No sudo needed, unlike powermetrics Shows CPU, GPU and Neural Engine power draw	Sortable, filterable process list with per-process detail, driven by mouse or keyboard Graphs for CPU, memory, disks and network in one screen
Apple Silicon Macs only Relies on a private macOS API that could change	No native Windows build; on Windows you need WSL It reports and does not manage: there is no alerting or historical logging
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: Apache-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 20, 2026

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