iStat Menus on your Mac — 7.50

You are rendering a video, and the fan starts spinning up. You glance at the menu bar: CPU is pegged, memory is nearly full, and the disk is writing hard. That is the kind of moment iStat Menus 7.50 is built for. It puts a live picture of your Mac's health right where you can see it, without opening a separate window.

What it shows and who it helps

Memory can be drawn as pie or line charts, so you can spot trends at a glance. Disk information includes usage, activity, read and write indicators, and S.M.A.R.T. status. For temperature and fan speed readings, you enable the optional iStat Menus Helper component. The app runs on both Apple silicon and Intel Macs, and requires macOS 11 or later.

Who will find it useful

This is for anyone who likes to know what their Mac is doing: a teacher checking why a presentation stutters, a developer watching a build, or a curious user who wants to understand their machine. The interface is available in over 30 languages, so it fits a broad classroom or workplace. It is a practical tool, not a toy, and it earns its place in the menu bar.

MenuBarStats is lightweight but lacks GPU, disk S.M.A.R.T., and weather

A few other Mac apps sit in this same space, and each takes a different approach. MenuBarStats is lightweight and free, but it shows only CPU, memory, and network. It does not handle GPU, disk S.M.A.R.T., or weather. If you need just the basics, it works, but iStat Menus covers much more ground. System Dashboard offers a full-window view with graphs and tables, but it does not live in the menu bar. You have to switch away from your work to check it. iStat Menus keeps the information visible without leaving your active app. NetMonitor focuses entirely on network traffic and disk activity, with no temperature or fan control. iStat Menus bundles all of those in one icon, so you can replace several small tools with a single application.

iStat Menus complements Activity Monitor instead of replacing it

iStat Menus does not replace the built-in Activity Monitor. Instead, it complements it. When iStat Menus shows disk activity climbing, you can open Activity Monitor to see which process is responsible. When the weather forecast shows a storm approaching, you can quickly check the Astronomy item for cloud cover and seeing conditions before heading outside. The Dark Mode support means it matches your system theme automatically, so it does not stand out visually. The helper component is the only extra installation needed, and it is optional. If you never need temperatures or fan speeds, you can skip it entirely. The rest of the app works as a normal macOS menu bar extension.

A workflow for checking disk health

Let us walk through a common task: verifying whether a Mac's internal drive is running normally. You start by clicking the iStat Menus icon in the menu bar. The dropdown shows CPU, memory, and disk by default. Click the disk section to expand it. You see usage as a percentage and a read/write indicator. If the numbers look high, you can open the S.M.A.R.T. status view next. That list shows attributes like reallocated sectors, power-on hours, and temperature. A healthy drive stays within normal ranges. If you see a reading in the caution zone, you know to back up immediately. You can then leave iStat Menus in the menu bar and check it again the next day. The whole check takes about thirty seconds, and you never open a separate utility.

Start with the default layout to learn what is normal for your Mac

• Start with the default layout. The app shows CPU, memory, and disk as text in the menu bar. Spend a day using it as-is before you customize. That way you learn what is normal for your Mac.
• Enable the helper component only if you plan to watch temperatures or fan speeds. The helper is a separate process that runs in the background. You can install it later if you change your mind.
• Set up the weather and astronomy items if you work with outdoor activities or astronomy. The Astronomy item in version 7.50 gives forecasts for seeing, transparency, and cloud cover, which is useful before planning an evening of observation.
• Pick the variant that matches what you need.
• Leave iStat Menus running for a week before you decide which stats to show. Some data, like network bandwidth, becomes more useful once you see daily patterns. The menu bar icon stays small, so it does not distract.

• Adds a new Astronomy item.
• Adds forecasts for seeing, transparency, cloud cover, and other observing conditions.

• macOS 11 or later
• Apple Silicon or Intel 64-bit