Is your Mac too slow, overheating, or loud? Try these 5 best system monitoring apps

Even the latest Mac model is not immune to slowing down over time. As a content creator, I often work with heavy files, and I noticed that my laptop started to lag and overheat. My co-worker, a developer, faced the same issue and advised me to install Mac monitoring software.

Indeed, using monitoring software for Mac brings many benefits to the routine of those who constantly have a dozen tabs open. It helps terminate unresponsive and unwanted tasks and applications, provides a smooth user experience, and helps figure out what exactly is eating up your storage.

So, I have compiled a list of the 5 best Mac monitoring software so you can find the right solution for you and extend your laptop's service life.

Mac monitoring software comparison: which one to choose

Different monitoring software for Mac focus on various aspects of system performance. Some focus purely on data collection, others add fan control, and several bundle optimization tools alongside monitoring.

App	Best For	Key Strength	Price
iStat Menus	Comprehensive monitoring	Most detailed system stats	Included in Setapp
TG Pro	Thermal management	Fan control and cooling	Free or $20/one-time
XRG	Budget users	Basic monitoring	Free
Sensei	All-in-one solution	Monitoring + optimization	Free or $29/year
iStatistica Pro	Widget-focused users	Notification Center integration	$9.99/one-time

The right choice depends on whether you need pure monitoring, active cooling control, or combined optimization features.

iStat Menus: Most complete monitoring software for Mac

iStat Menus remains the gold standard for Mac system monitoring. The app lives in your menu bar and provides real-time data on virtually every measurable aspect of your Mac's performance — CPU load, memory usage, disk activity, network traffic, temperatures, fan speeds, battery status, and even weather.

What distinguishes iStat Menus is the depth and customization. You're not limited to pre-configured widgets; you can design exactly which metrics appear in your menu bar and how they're displayed.

“Video editing pushes my Mac to the limit, so I always keep iStat Menus in my menu bar. When I see the CPU going wild, I know it’s time to shut down some apps before a render crashes. It’s saved me from losing hours of work more times than I can count,” says Javier, creator of the MinimalisTech Channel.

Best features:

• Real-time CPU and GPU monitoring 
• Network activity graphs with bandwidth breakdown for top 5 apps
• Disk usage and activity monitoring for both local and network drives
• S.M.A.R.T. status monitoring for drive health
• Temperature sensors for CPU, GPU, drives, and other components
• Fan speed monitoring and control
• Battery health tracking 

Pros:

• Highly customizable menu bar displays
• Detailed process-level information
• Clean, native macOS interface
• Can prevent thermal throttling through early warnings

Cons:

• Can feel overwhelming with the number of available metrics

Price: Available on Setapp, a subscription platform with 250+ apps. You can try it free for 7 days.

TG Pro: Mac system monitor app focusing on temperature monitoring

For users who constantly face MacBook overheating, TG Pro is the optimal solution. The main feature of this monitoring software for Mac is thermal management. TG Pro excels at comprehensive temperature monitoring, offering both automated and manual cooling solutions.

The app monitors temperatures across CPU, GPU, WiFi modules, drives, and batteries (on MacBooks), while giving you control over cooling through customizable fan speed rules.

“I use TG Pro for monitoring temperatures (usually CPU, GPU and battery), fan speeds, and also battery health. It works really well”, says a Reddit community member.

Best features:

• Temperature monitoring
• Individual CPU core temperature tracking on Apple Silicon Macs
• Auto Boost rules for automated fan control based on temperature thresholds
• Real-time alerts and notifications for temperature events
• Email alerts for critical temperature thresholds
• Low CPU resource consumption 

Pros:

• Prevents overheating 
• Automated fan control 
• Works across wide range of Mac models and macOS versions
• Free version available with core functionality
• Can extend hardware lifespan by preventing thermal stress

Cons:

• Fan control options vary by Mac model

Price: Free or $20/one-time. 

XRG: Best free system monitor for basic needs

If you are looking for free monitoring software for Mac and don't mind investing some time to learn the interface, give XRG a try. It will provide you with basic system visibility without advanced features. 

XRG monitors CPU and GPU activity, memory usage, battery status, machine temperature, network activity, disk I/O, and even includes current weather and stock market data.

Best features:

• CPU and GPU activity monitoring
• Memory usage tracking
• Machine temperature sensors
• Battery status information
• Network activity visualization
• Disk I/O monitoring

Pros:

• Completely free 
• Covers essential monitoring needs
• Customizable display options
• Lightweight resource usage

Cons:

• The data display can appear cluttered

• Advanced features such as fan control are not available

• It takes time to understand the interface layout

Price: Free.

Sensei: Best Mac monitoring software with cleanup 

Sensei combines two tools in one — monitoring and optimization. Beyond tracking performance metrics, it includes disk cleanup, application uninstaller, battery health diagnostics, and thermal management.

Best features:

• Real-time CPU, memory, network, and disk monitoring
• GPU utilization and VRAM usage tracking
• 40+ temperature sensors supported
• Fan speed monitoring
• Battery cycles, health, and capacity tracking
• Bluetooth device battery levels (AirPods, Magic Mouse, etc.)

Pros:

• Monitoring with optimization in one app
• Battery and drive health diagnostics
• Customizable interface with themes
• Fast disk scanning optimized for macOS

Cons:

• May be excessive for users only wanting monitoring

Price: Free or $29/year.

iStatistica Pro: Best for Notification Center and remote access

For users who prefer widget-based monitoring or need to check Mac status remotely, iStatistica Pro offers unique functionality.

This app focuses on the integration of widgets and remote monitoring features. The app provides comprehensive system monitoring with emphasis on macOS Notification Center widgets and web-based remote access.

Best features:

• Real-time CPU, memory, network, disk cards
• System uptime tracking
• CPU, RAM, disk usage visualization
• Battery cycles, health, and capacity
• Incoming and outgoing traffic speed

Pros:

• Great widget integration
• Remote web access unique feature
• Comprehensive monitoring capabilities
• Can trigger actions based on alerts

Cons:

• Requires purchase (no free tier)
• Some features overlap with built-in macOS monitoring

Price: $9.99/one-time

To sum up: Choosing the right Mac monitoring software

Based on how intensively you use your Mac and what your maintenance preferences are, you can choose your monitoring software option.

Currently, iStat Menus is the best Mac monitoring software. It offers detailed visibility into every system metric and features highly configurable menu bar displays.

If overheating is your main challenge, choose TG Pro, and if you are looking for a free solution with basic monitoring features, try XRG. Sensei combines monitoring and optimization in one software, and iStatistica is a good choice for those looking for remote monitoring.

With Setapp, you get access to iStat Menus and 250 other apps for efficient work on Mac for the price of a single subscription. Try it now and build a toolkit for your work routine.