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Power Monitormacmon
Free

Free and open source under the Apache 2.0 licence.

 Free

Free, with source published on GitHub.

macOS macOS, Command line
  • Real-time power consumption readings
  • Carbon footprint estimate based on location
  • No sudo needed, unlike powermetrics
  • Shows CPU, GPU and Neural Engine power draw
  • macOS only
  • No formal GitHub releases
  • Apple Silicon Macs only
  • Relies on a private macOS API that could change
Downloadable app Downloadable app
Open source Open source
License: Apache-2.0 License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 2, 2026

Checked September 24, 2026

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