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CLUSTER BAR-CPU-DISPLAYS · 69 ENTRIES · EARLIEST ENTRY 2026-08-18

macOS system monitoring apps

These products are macOS menu bar applications that display real-time system metrics such as CPU, memory, disk, and network usage, with some offering click-through details or historical data. The cluster's dated history is too thin to read a shape from, as no dated entries exist before the index start; it predates the index or its members are undated. ActivityMonitor leads with 35 stars, followed by CalmBar at 13 and launchboard at 6.

Entry timeline

ENTRY TIMELINE

AUG 2026: 7SEP 2026: 48OCT 2026: 14
AUG 2026OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 1 ai-built · 4 hand-coded · 15 unlabelled

Operator · 17 hobby · 3 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 41ClaudeDeck0★24 days—hobbymacOS app that displays a floating card with live memory and CPU usage for Claude Code sessions and lets users sleep, resume, and get notified.
  2. 42RAMWatch0★21 days—hand-codedhobbyFloating macOS app that monitors memory usage, pressure, swap, and top apps, with alerts when memory runs low.
  3. 43open-sensei0★6 days—hand-codedhobbyMenu bar app that monitors CPU, memory, battery, cooling, network, and storage, and provides battery insights and temporary fan control.
  4. 44MacVitals0★6 days—hobbymacOS menu bar app that monitors CPU, memory, temperature, fan speed, network, battery, and disk with live telemetry.
  5. 45nabiz0★8 dayslivehobbymacOS menu bar app that monitors CPU, memory, disk usage, and temperature, showing developers why their Mac is busy.
  6. 46notchlog0★21 days—macOS system monitor hidden in the notch that shows live CPU, memory, and network usage and exports activity logs.
  7. 47SuperMinimalTools0★22 days—hobbyMenu bar app for macOS that displays CPU temperature and network speed and cleans developer junk files.
  8. 48RemoteMonitor0★13 days—hobbymacOS menu bar app that displays GPU, CPU, memory usage and temperatures of a remote Linux machine over SSH.
  9. 49tally0★13 dayslivehobbySystem monitor for Mac that groups helper processes under the apps that own them, making system activity readable.
  10. 50RunCatNeo0★12 days—hobbyMenu-bar system monitor that displays CPU, GPU, memory, storage, battery, and temperature stats, with an animated runner that reflects processor load.
  11. 51StatMenu0★13 dayslivehand-codedhobbymacOS menu bar app that monitors CPU and GPU clocks, memory, disks, network, sensors, and power on Apple Silicon Macs.
  12. 52headroom0★8 days—ai-builthobbymacOS menu bar app that shows memory usage and identifies which user-launched processes are consuming RAM.
  13. 53MacPulse0★23 days—System monitor that lives in the MacBook notch and shows memory-pressure signals that indicate lag.
  14. 54small-matter0★13 days—hobbymacOS system utility that displays hardware telemetry including CPU, memory, battery, and fan readings, plus disk cleanup and keep-awake.
  15. 55slurmbar0★14 days—hand-codedhobbymacOS menu bar app that tracks Slurm cluster jobs, allocations, and disk quotas, and sends notifications when jobs finish or fail.
  16. 56puls0★14 dayslivehobbyMenu bar system monitor that displays CPU, GPU, memory, network, disk, sensors, and battery status on macOS.
  17. 57core-metrics0★18 days—hobbymacOS menu-bar utility that displays CPU, memory, and startup-disk usage and keeps all sample data local with no telemetry or accounts.
  18. 58Rex-Boing0★15 days—Menu bar system monitor that reports CPU, GPU, memory, thermal, and per-process power usage on macOS.
  19. 59membar0★19 days—hobbyMac menu bar app that displays live memory usage, ranks apps by consumption, and alerts users when an app uses too much RAM.
  20. 60vitals0★16 days—hobbyMenu bar app and command-line tool that monitor Apple Silicon CPU, GPU, memory, power, and thermal state, with a local web dashboard.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.