What Can Stats Monitor on a Mac?

Updated

Stats (mac-stats.com) monitors nine areas of your Mac from the menu bar: CPU, GPU, RAM, disk, sensors, network, battery, Bluetooth, and a clock/calendar. Each module can appear as a chart, number, gauge, or dot, and you can combine and reorder up to 13 widgets. It runs on macOS 12+ on both Apple Silicon and Intel Macs, and the site describes it as free and open-source with no ads, tracking, or subscriptions.

The nine monitoring modules

Module What it shows
CPU Real-time load, frequency, and temperature, plus a live list of the most demanding processes
GPU Utilization, memory, and temperature for Intel, AMD, and Apple Silicon graphics
RAM Memory pressure, used and free RAM, swap usage, and the top memory-consuming apps
Disk Free and used space, read/write activity, and SMART health for every drive
Sensors Temperature, voltage, power, and fan-speed readings from across the hardware
Network Upload and download speeds, total data usage, and local and public IP addresses
Battery Charge level, health, cycle count, time remaining, and power source
Bluetooth Battery levels of connected devices such as keyboards, mice, and headphones
Clock A customizable clock and calendar with multiple time zones

How the menu bar display works

Every module can be rendered as a chart, a number, a gauge, or a dot. The site lists 13 widget styles, including mini line chart, bar chart, pie chart, network chart, speed label, tachometer, memory, battery, stack, dot, and text. You can combine, reorder, and color them to fit your menu bar.

What this replaces

Stats is positioned as a free alternative to iStat Menus and as a way to avoid opening Activity Monitor for routine checks. Instead of switching to a full window, you get live CPU and GPU load, memory pressure, disk space, network throughput, sensor readings, fan speeds, and battery health at a glance.

Practical notes before installing

  • Requirements: macOS 12 or later; works on Apple Silicon (M1, M2, M3 and later) and Intel Macs.
  • Install options: Download directly from the site (current version listed as v3.0.21) or install via Homebrew.
  • Scope: The site reports 100M+ downloads, 42.5k GitHub stars, 41 languages, and 7 years of active development.
  • Pricing: The site describes Stats as completely free and open-source. No pricing page or payment details are listed, so treat cost claims as coming from the project's own description.

If your goal is a quick, always-visible readout of CPU, GPU, memory, disk, network, sensors, and battery, Stats covers all of those in one menu bar app. If you only need one metric, a single-purpose tool may be lighter; if you want deep historical logging or remote monitoring, check the project's documentation for whether those features exist before committing.