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zoostats.app
v0.1 · public beta · macOS 14+

A tiny zoo of live system stats.

ZooStats is a native macOS menu bar app for live system statistics. Pin a CPU number, a memory pie, a fox that runs faster as your build heats up. All readings stay on your machine. Nothing is uploaded.

platform macOS 14 (Sonoma) +
install size ≈ 6 MB
idle CPU < 1 % (one sprite)
trackers none, by design
Download for macOS See it in motion ↓
live, in your browser · the actual app, replicated
24% · MEM 85% · 40% · 2 KB/s
CPU
24%
User 17.5% System 6.8%
Performance Cores 16%
Efficiency Cores 30%
Pin as:
Memory
85%
App 4.00 GB Wired 3.29 GB Compressed 8.00 GB Cached 2.03 GB Swap 10.63 GB Free 2.71 GB
Total 18.00 GB
Pressure: Critical
Pin as:
GPU
40%
Device 39.6% Renderer 39.2%
Pin as:
Network
2 KB/s
↑ 0 KB/s ↓ 2 KB/s
Peak ↑ 11 KB/s Peak ↓ 46 KB/s
Interface
Wi-Fi · en0
Local IPv4
192.168.0.140
Local IPv6
fe80::1033:9906:aff5:bb96%en0
Public IP
88.19.176.250
Pin as:

※ values above are simulated client-side · the real app reads the same metrics from local Apple system APIs on your machine

where the numbers come from

Four sources. All local.

Each metric comes from an Apple system API on your machine. There is no backend, no tracking, no third-party SDK. Nothing is fetched. Nothing is uploaded.

metric api rate
CPU usage host_processor_info 1 Hz
Memory pressure vm_statistics64 1 Hz
GPU activity IOReport 2 Hz
Network throughput getifaddrs 1 Hz
system

Built like infrastructure. Measured, not asserted.

The animation runs in the WindowServer, not in our process. One sprite costs about as much as the most popular menubar runner app does. Three sprites cost less. The numbers below are budgets enforced in CI; they are not aspirations.

Performance budget

  • idle CPU · 1 sprite ≤ 0.8 %
  • idle CPU · 3 sprites ≈ 0.73 %
  • RSS · popover closed < 30 MB
  • wake rate · static pins 1 / sec
  • display sleep wakes 0
  • deps · third-party 0

Stack & compatibility

  • macOS 14.0 (Sonoma) +
  • CPU Apple silicon · Intel
  • language Swift 5.9 / SwiftUI
  • runtime NSStatusItem · LSUIElement
  • distribution signed & notarised DMG
  • publisher Black Bao Studio
install

Run the
whole zoo.

macos download

ZooStats-0.1.dmg ↓
universal binary · signed & notarised · macOS 14+ · ≈ 6 MB

The app is free. No accounts, no licence keys, no auto-updaters phoning home. Drop the DMG into Applications and the zoo lives in your menubar from the next reboot.

publisher
Black Bao Studio
based
Alicante, ES
contact
imprint
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