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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 · 3 hand-coded · 17 unlabelled

Operator · 12 hobby · 2 indie · 1 commercial · 5 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. 01ftop94★1 day—Floating panel app for Apple Silicon Macs that shows real-time system resource usage in a small unobtrusive glass window.
  2. 02CalmBar15★23 daysliveA macOS utility suite that manages hardware thermals, menu bar layout, mouse behavior, clipboard history, and system cleanup for power users.
  3. 03pwemacmonitor2★24 dayslivehobbyMenu-bar hardware monitor for Apple Silicon Macs displaying per-core CPU, GPU, memory, power, and temperature metrics.
  4. 04SimplyBar2★12 daysliveindieMac menu bar app that monitors CPU, memory, network, disk, GPU and Bluetooth battery levels with popups and widgets.
  5. 05Perch5★21 dayslivehobbymacOS menu bar app that launches apps, switches between windows, and shows CPU, memory, and network usage from a search panel.
  6. 06caliper4★21 dayslivehand-codedhobbymacOS menu bar app that displays real-time CPU, memory, disk, and network usage with historical data.
  7. 07mac-pulse2★8 days—hobbyMenu bar system monitor for macOS that displays CPU, memory, disk, network, GPU, battery, sensors, per-app usage, history, alerts, and storage cleanup.
  8. 08pulse1★22 daysliveindiemacOS menu bar app that displays real-time memory pressure, lists top RAM-consuming apps, and force-quits processes from a command palette.
  9. 09WattsUp1★5 days—hobbymacOS menu bar app that displays a Mac's power consumption and memory usage as Sankey diagrams, hiding unavailable sensor data.
  10. 10brasa1★1 daylivehobbyMenu bar app for Apple Silicon Macs that monitors chip, battery, and SSD temperatures, memory, and fans, warning before overheating.
  11. 11redline1★20 days—hobbyFloating system monitor for Apple Silicon Macs showing CPU, GPU, memory, and die temperature, with a thermal throttling alert.
  12. 12Matrix1★10 days—hand-codedhobbyMenu bar system monitor for Macs that shows memory, disk, temperatures, notes, and a daily tarot card.
  13. 13headroom1★6 days—hobbymacOS menu bar app that reports whether the Mac is running fast or slow, shows memory, CPU and swap graphs, and names the apps responsible.
  14. 14Logs_Manager1★2 days—Mac utility that manages logs and monitors system status on Apple Silicon Macs.
  15. 15MacRadar1★1 molivehobbymacOS menu bar app and desktop widget that displays real-time CPU, RAM, and disk usage for system monitoring.
  16. 16PulseBoard1★12 dayslivehobbyMac app that displays CPU, GPU, memory, network, disk, and power usage with historical charts and menu bar status.
  17. 17PowerLens-Mac-Power-Monitor1★14 days—hobbyMenu bar app for Apple Silicon Macs that displays per-app CPU, GPU, and Neural Engine power draw along with total system power.
  18. 18ApexFlow0★20 dayslivehand-codedcommercialNative macOS system monitor that displays CPU, memory, disk, network, and hardware status including Thunderbolt, USB, MIDI, and OSC activity.
  19. 19mac_widget_res4★1 mo—System monitoring utility for macOS that displays CPU and memory usage in the menu bar with a detailed breakdown on click.
  20. 20MacRadar0★19 days—macOS menu bar app that monitors CPU, memory, and disk usage in real time with a desktop widget.

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.