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Power Monitor vs Mx Power Gadget: catalog facts
Power Monitor	Mx Power Gadget
Free Free and open source under the Apache 2.0 licence.	Free Free download.
macOS	macOS
Real-time power consumption readings Carbon footprint estimate based on location	Built specifically for Apple Silicon processors Real-time performance monitoring
macOS only No formal GitHub releases	Apple Silicon Macs only Requires macOS 14 or later
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
Not stated if an account is needed	Not stated if an account is 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 October 1, 2026

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