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macmon vs TG Pro: catalog facts
macmon	TG Pro
Free Free, with source published on GitHub.	Paid One-time payment, listed at 10 US dollars.
macOS, Command line	macOS
No sudo needed, unlike powermetrics Shows CPU, GPU and Neural Engine power draw	Supports Apple Silicon up to M5 and Intel Macs Manual and automatic fan speed control
Apple Silicon Macs only Relies on a private macOS API that could change	macOS only Paid app
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 September 23, 2026

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