Data usageWi-Fi · 30 days
Today3.8 GB
This month41.2 GB
Bytes per interface per day, kept 90 days.
What your Mac did while you weren’t looking
Your fans roared at 3 pm yesterday and the build was slow on Tuesday. Stat Space keeps a per-minute average of every metric for 30 days, on your Mac, and every chart scrolls back from 2 minutes to 30 days.
03Everyday · History
What happened while you weren’t looking.
Per-minute averages of CPU, memory, pressure, swap, paging, GPU, temperatures, fans, power, clocks, network and disk, kept for 30 days on your Mac. Every chart switches between 2 minutes, 1 hour, 24 hours, 7 days and 30 days.
User System Average –
24h agonow
Chart palette Colour-blind safe uses the Okabe–Ito set; good, warning and critical never rely on red vs green. It colours the menu bar’s “by load” mode too.
LatencyVPN · utun4
Latency14 ms
Loss0%
Jitter2.1 ms
Opt-in: one ping every 10 s, charted and kept in history. A VPN chip appears when a tunnel carries your traffic.
Clocks & pagingwhile active
P-cluster3.2 GHz
E-cluster1.9 GHz
GPU890 MHz
Page-ins 212/sSwap-outs 0/s
Average cluster and GPU clocks, plus page-ins/outs and swap-ins/outs per second.
Every metric, per minute
CPU, memory, pressure, swap, paging, GPU, temperatures, fans, power, CPU and GPU clocks, network and disk, averaged each minute and kept 30 days.
Five ranges on every chart
Switch between 2 minutes, 1 hour, 24 hours, 7 days and 30 days. Hover for exact values; the dashed line is the average over the window.
Data usage
Bytes per network interface per day, kept 90 days: today, this month and a 30-day bar chart.
Latency monitor
Opt-in: one ping every 10 seconds, with latency, loss and jitter charted and kept in history. A VPN chip appears when a tunnel carries your traffic.
Colour-blind safe
Pick Colourful, Colour-blind safe (Okabe–Ito, never red against green) or Gray. The menu bar’s by-load colours follow it.
Trends (Pro)
History read back as plain findings over 24 h, 7 d and 30 d: CPU against your norm, your busiest hours, top apps by CPU time, memory pressure, hottest moments and data used.
A record you didn’t have to start
History is on by default from the first launch. A separate logger samples each metric once a minute, so every rate (network, disk, paging) is measured over exactly that minute rather than as a snapshot. After sleep, it starts measuring afresh instead of averaging across the gap.
That makes questions answerable after the fact. Did the fan curve keep the chip under 90 °C during yesterday’s render? How much swap did the 32 GB machine actually use this week? Was the network bad at 8 pm every day, or just once? The answer is a scroll back on a chart, not a log file you forgot to start.
Every chart, not just one screen
History isn’t a separate window. The same 30 days sit behind the charts in Home, System, Network and Disk, so switching a CPU chart from 2 minutes to 7 days is one click on the chart you’re already looking at. Hover anywhere for the exact value at that minute, and the dashed line shows the average for the window you picked.
Free history, Pro findings
The charts, data usage and latency monitor are free. Pro’s Trends tab reads the same history back as one-line findings with a small chart each: your CPU average against your 7-day norm, a weekday × hour heatmap of when you’re busiest, the hottest moment and time above 85 °C, and data used per day against your average. Each finding says how much history it rests on, so a day-old install never pretends to know your norm.
Questions
Does keeping history slow my Mac down?
No. History is written once a minute to a small local SQLite file, so it costs one wake-up a minute and never changes how often the live readouts sample.
Where is the history stored, and is it uploaded?
In Stat Space’s Application Support folder on your Mac. It isn’t uploaded anywhere, and it’s left out of settings exports. You can turn it off in Settings › History & backup.
Can I see which app caused a spike last week?
History stores system-wide numbers, not per-process ones. Pro’s Spike rewind logs the top 3 processes whenever CPU, temperature or fans cross a threshold, and Trends lists top apps by CPU time from daily totals.
Why only 30 days?
It’s enough to compare this week with last and spot a pattern, while keeping the database small. Daily data usage is kept longer, for 90 days.
Get started
Know what your Mac is doing, without adding to it.
Free, no account. Pro is $9.99 once for the first 100 buyers.