Pulse · System Monitor
A health score, live vitals, and a spike log that records which app caused the slowdown — even while you were away. Native, sandboxed, and entirely on-device.

Not just numbers. Answers.
Activity Monitor tells you what is happening right now. Pulse tells you what happened, what caused it, and what is about to.
A 0–100 score scored continuously against disk, thermals, memory pressure, swap, CPU load and battery wear — with every contributing factor named, and a graph of how it has trended.

Twelve ways to see it. Three at a time.
Pick the metrics that matter to you. Free shows one; Pulse Pro shows up to three side by side, including live sparkline graphs.
Three metrics selected — the Pro maximum. Pick another to swap the oldest out.
Small app. Serious instrument.
One 0–100 score, continuously scored against disk pressure, swap, thermals, CPU load and battery wear — with the specific factors dragging it down.
Pulse records every CPU and memory spike with its peak and the apps behind it — up to 30 events over 24 hours, captured whether or not you were watching.
Which apps caused most spikes, when they recur, whether your disk is trending toward full, and how battery capacity is drifting week over week.
Per-core CPU with the performance/efficiency split, real kernel memory pressure, swap, per-volume disk, throughput, battery health and cycles, temperatures, fans, GPU VRAM.
Point Pulse at a folder and it ranks the biggest folders and files inside, flags anything untouched for months, and reveals or trashes them in a click.
Twelve display modes including live sparkline graphs. Badges turn red the moment a metric crosses its threshold. No Dock icon, no window in your way.
Where macOS sandboxing hides a reading — battery health on some Macs, SMC sensors on others — Pulse says “Unavailable” instead of inventing a comfortable default.
English, German, French, Spanish, Italian, Dutch, Brazilian Portuguese, Russian, Ukrainian, Japanese, Korean, Simplified and Traditional Chinese.
Built entirely on Apple frameworks with zero third-party dependencies. No analytics, no accounts, no network requests — nothing about your Mac leaves it.
Free to download, and free stays useful. Unlock the full picture with a one-time $4.99 Pulse Pro purchase — never a subscription.
macOS 14.6 or later · Version 1.8.3