XRGĪvailable as an open-source system monitor for Macs, XRG allows you to monitor CPU and GPU activity, memory usage, battery status, machine temperature, network activity, disk I/O, current weather, and stock market data. While the TG Pro trial gives 10 days of free testing, it unfortunately limits the data it displays and therefore pushes users to purchase a license for $18. This Mac monitoring app will display quick temperature info in the menu bar, but to gain access to all the information available you’ll need to either click on the TG Pro item to see a quick overview of the data or launch the app and get visual information for the targeted segment. What TG Pro does is provide control over the fan speed to cool down your Mac's hardware, which is especially useful on hot summer days when Macs tend to overheat. In addition, TG Pro offers a color-coded visual explanation of what is happening with the computer's internals: green means that you can relax, orange that the hardware is approaching its limits, and red represents that it is very close to the thermal limit. That's a very important feature if you want the computer to deliver optimal performance. While iStat Menus only displays information, TG Pro goes one step further and offers an option to control your Mac's fans, along with offering an overview of the sensor data that macOS gives access to. Short for Temperature Gauge Pro, this tool could become a Mac monitoring utility that you become attached to. The Family Pack allows iStat Menus to be used on up to five Macs within the same household. Bjango's iStat Menus can be trialed for 14 days for free, but after that you'll need to purchase a license for $18 or upgrade for $9.99 if you already happen to own version 3 or 4. IStat Menus, however, lets you monitor only the CPU, GPU, memory, disks, network, sensors, battery, power, time, or any combinations of these. That's a nice advantage over the competing apps, even Bjango's own iStat widget which only displays all the information in one window. Customize the data by turning on the monitoring only for what you want it to keep an eye on. If you want more data and visuals, just click on the desired item. One of the best things about iStat Menus is that there is a quick view for the essential data right in the menu bar.

You may already be familiar with the iStat Pro widget from the same developer, which displays the same data in the dashboard. Available as a separate purchase or via Setapp, Bjango's iStat Menus is one of the best Mac monitoring apps available.

Fan utility for mac