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.