TL;DR
Stats vs eul: Both Stats and eul are excellent system monitoring. Stats is better for users who prefer open source solutions, while eul excels for those who value transparency.
Which is better: Stats or eul?
Both Stats and eul are excellent system monitoring. Stats is better for users who prefer open source solutions, while eul excels for those who value transparency.
Stats vs eul
Which is the better system monitoring for Mac in 2026?
We compared Stats and eul across 5 key factors including price, open-source status, and community adoption. Both Stats and eul are excellent system monitoring. Read our full breakdown below.
Stats
System monitor for the menu bar
eul
macOS status monitoring app
Visual Comparison
Stats
Stats — Official Website
eul
eul — Official Website
Our Verdict
Both Stats and eul are excellent system monitoring. Stats is better for users who prefer open source solutions, while eul excels for those who value transparency.
Feature Comparison
| Feature | Stats | eul |
|---|---|---|
| Price | Free | Free |
| Open Source | Yes | Yes |
| Monthly Installs | N/A | N/A |
| GitHub Stars | N/A | N/A |
| Category | System Utilities | System Utilities |
Quick Install
brew install --cask statsbrew install --cask eulLearn More
In-Depth Overview
What is Stats?
Stats is a free, open-source macOS system monitor that displays key performance metrics directly in your menu bar, providing at-a-glance visibility into your Mac's health without opening a separate application. Created by Ukrainian developer Serhiy Mytrovtsiy, Stats has become the most popular menu bar system monitor on macOS with over 38,500 stars on GitHub and a thriving community of contributors. Stats monitors an impressively comprehensive range of system metrics: CPU usage with per-core breakdowns showing individual efficiency and performance core utilization on Apple Silicon, memory utilization with detailed active/wired/compressed/inactive breakdown, disk I/O rates and capacity across all mounted volumes, network throughput with real-time upload and download speeds and cumulative data transfer tracking, GPU utilization and temperature for both integrated and discrete graphics, battery health including charge cycles and degradation percentage and time remaining estimates, fan speeds and comprehensive temperature readings through SMC sensor access, and Bluetooth device battery levels for AirPods, Magic Mouse, Magic Keyboard, and other connected accessories. Each monitoring module can be displayed in the menu bar using multiple visualization formats: mini line charts showing historical trends, bar graphs for quick visual comparison, percentage numbers for precise readings, colored dot indicators for ambient awareness, or combinations thereof. You can independently configure which modules appear in your menu bar, set update intervals from 1 second to 60 seconds for each module, customize colors and display formats, and choose exactly which sub-metrics are visible. Clicking any menu bar widget opens a detailed popover panel with additional information, historical graphs, and expanded metrics. Stats is written in Swift and runs natively on macOS with full Apple Silicon optimization, supporting all M-series chips including M1, M2, M3, and M4 variants. Despite the extraordinary depth of monitoring it provides, Stats is remarkably lightweight—typically using less than 50MB of RAM and negligible CPU overhead. The app is actively maintained with frequent updates ensuring compatibility with the latest macOS releases, new hardware support, and feature additions driven by community feedback.
What is eul?
eul (pronounced like Euler, the mathematician it's named after) is a free, open-source macOS system monitor built entirely in SwiftUI, Apple's modern declarative UI framework. Created by developer Gao Sun, eul takes a deliberately minimalist approach to system monitoring, prioritizing clean visual design, simplicity of use, and extremely low resource consumption over the breadth of monitoring capabilities. eul monitors the essential system metrics most users care about: CPU usage with aggregate utilization percentage, memory pressure showing how stressed your system's RAM is, network throughput displaying current upload and download speeds, disk utilization and available space, battery status with charge percentage and power source, and fan speeds with temperature readings for thermal awareness. Its SwiftUI-based interface gives eul a distinctly modern, native macOS aesthetic that integrates beautifully with the menu bar—the status items are clean and typographically refined, and the dropdown popovers present information in a well-organized, visually harmonious layout with smooth animations and proper dark mode support. eul supports multiple display languages, customizable status item formats, and the ability to show or hide individual monitoring modules. Where eul intentionally differs from comprehensive monitors like Stats is in what it omits: there's no GPU monitoring, no Bluetooth device battery tracking, no per-core CPU breakdown, no SMC sensor detail, and significantly fewer display customization options. This isn't oversight—it was the original philosophy. However, eul has not received a release since August 2021 (v1.6.2) and is effectively unmaintained. While it may still function on current macOS versions, users seeking long-term reliability and compatibility with future macOS releases should consider Stats instead.
Detailed Feature Comparison
Monitoring Modules
CriticalStats monitors CPU, GPU, memory, disk, network, battery, Bluetooth, fans, and sensors. Each module provides detailed breakdowns (per-core CPU, memory type breakdown, disk I/O rates).
eul monitors CPU, memory, network, disk, battery, and fans/temperature. Coverage is solid for essentials but lacks GPU monitoring, Bluetooth battery tracking, and the depth of sensor data Stats provides.
Verdict: Stats monitors more system components with greater detail.
Display Customization
HighStats offers multiple display formats for each module: mini graphs, bar charts, percentages, colored indicators, and more. Each module's appearance, colors, and update interval can be configured independently.
eul provides clean display options with text and icon formats. Customization is more limited—you can choose which modules to show but have fewer options for how they're displayed.
Verdict: Stats provides significantly more flexibility in how monitoring data is presented.
Resource Usage
HighStats uses approximately 30-50MB RAM and minimal CPU despite monitoring many metrics. It's well-optimized with configurable update intervals to further reduce overhead.
eul uses approximately 20-40MB RAM. Its SwiftUI architecture and simpler feature set contribute to a very light footprint.
Verdict: Both are remarkably lightweight. eul is marginally lighter due to fewer features, but the difference is negligible.
GPU Monitoring
MediumStats monitors GPU utilization, temperature, and memory usage. On Apple Silicon Macs, it shows the GPU cores' activity and thermal state.
eul does not include GPU monitoring. Users interested in GPU performance need to use Activity Monitor or another tool.
Verdict: Stats includes GPU monitoring; eul does not.
Sensor and Temperature Data
MediumStats reads SMC sensors for CPU/GPU temperatures, fan speeds, SSD temperature, and other thermal data. On Apple Silicon Macs, it displays efficiency and performance core temperatures separately.
eul displays fan speeds and basic temperature readings. Sensor coverage is less comprehensive than Stats.
Verdict: Stats provides deeper sensor data including per-component temperatures.
UI Design and Aesthetics
MediumStats has a functional, information-dense interface. The menu bar widgets are configurable but can look busy if many modules are enabled. The popover panels are information-rich but utilitarian.
eul's SwiftUI interface is clean, modern, and aesthetically pleasing. The popovers are well-designed with a native macOS feel that some users prefer over Stats' more data-dense approach.
Verdict: eul's SwiftUI interface is more visually refined and feels more natively macOS.
Active Development
HighStats is actively maintained with frequent commits, regular releases (latest v2.12.13 as of May 2026), and quick macOS compatibility updates. The developer is responsive to issues and feature requests.
eul has not received a release since August 2021 (v1.6.2) and is effectively unmaintained. The last commit was in May 2024, but no new releases have been published. Users should not expect future updates or bug fixes.
Verdict: Stats is actively developed and maintained; eul is effectively abandoned with no releases since 2021.
Bluetooth Battery Monitoring
LowStats can display battery levels for connected Bluetooth devices (AirPods, Magic Mouse, Magic Keyboard, etc.) in the menu bar.
eul does not monitor Bluetooth device battery levels.
Verdict: Stats monitors Bluetooth device batteries; eul does not.
Stats vs eul Feature Matrix
| Feature | Stats | eul | Winner |
|---|---|---|---|
| Monitoring Modules | Excellent | Good | Stats |
| Display Customization | Excellent | Good | Stats |
| Resource Usage | Excellent | Excellent | Tie |
| GPU Monitoring | Excellent | Poor | Stats |
| Sensor and Temperature Data | Excellent | Good | Stats |
| UI Design and Aesthetics | Good | Excellent | eul |
| Active Development | Excellent | Poor | Stats |
| Bluetooth Battery Monitoring | Excellent | Poor | Stats |
Who Should Choose Which?
1The Power User
You want comprehensive monitoring with per-core CPU, GPU utilization, sensor temperatures, and Bluetooth battery levels—all configurable to your preferences.
2The Minimalist
You want a clean, simple system monitor. Stats can be configured to show only the basics (CPU, memory, network) while remaining actively maintained. eul has not been updated since 2021 and should be avoided for new setups.
3The Developer
Monitoring CPU per-core usage, memory pressure, and disk I/O during builds and deployments requires Stats' detailed breakdowns.
4The Design-Conscious User
While eul's SwiftUI interface is more visually refined, it has not been updated since 2021. Stats offers the best balance of aesthetics and active maintenance, with customizable display options to match your preferred visual style.
5The Long-Term User
Stats' active development and large community ensure it will continue working with future macOS releases and Apple hardware.
Migration Guide
Stats → Eul
NOT RECOMMENDED. eul has not received an update since August 2021 (v1.6.2) and is effectively unmaintained. Users seeking a simpler experience should configure Stats to show only essential modules (CPU, memory, network) rather than switching to an abandoned app.
Eul → Stats
STRONGLY RECOMMENDED. Install Stats via Homebrew (brew install --cask stats) or download from GitHub. Enable the same basic modules you used in eul (CPU, memory, network, disk, battery), then explore the additional modules: GPU monitoring, Bluetooth batteries, SMC sensors, and fan speeds. Uninstall eul immediately to avoid running an unmaintained app.
Pro Tips
Do not run both simultaneously—they'll create duplicate metrics in your menu bar. Do not install eul for new setups as it has not been updated since 2021 and may not work reliably with future macOS versions. Choose Stats for active maintenance, comprehensive monitoring, and long-term reliability.
Final Verdict
Stats
Winner
Runner-up
Stats wins convincingly as the superior free macOS system monitor. With comprehensive monitoring coverage spanning CPU (per-core), GPU, memory, disk, network, battery, Bluetooth, fans, and SMC sensors—all with extensive display customization—it provides depth that no other free Mac monitor matches. Its 38,500+ GitHub stars, active development, and responsive community ensure long-term reliability and compatibility. eul has not received a release since August 2021 and is effectively unmaintained, making it unsuitable for users seeking ongoing macOS compatibility and bug fixes.
Bottom Line: Choose Stats for the most comprehensive, actively maintained free system monitor on macOS. eul has not been updated since 2021 and should be avoided by users seeking long-term reliability.
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Frequently Asked Questions
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Sources & References
Fact-CheckedLast verified: May 6, 2026
Key Verified Facts
- Stats has over 38,500 stars on GitHub.[cite-stats-github]
- eul has over 9,800 stars on GitHub.[cite-eul-github]
- eul is built entirely in SwiftUI.[cite-eul-github]
- Both apps are MIT-licensed.[cite-stats-github, cite-eul-github]
- 1Stats GitHub Repository — 38.5K+ Stars
Accessed May 6, 2026
- 2eul GitHub Repository — 9.8K+ Stars (Last release v1.6.2, August 2021)
Accessed May 6, 2026
- 4Apple Silicon Performance Architecture
Accessed May 6, 2026
- 5macOS SMC and IOKit Sensor Access
Accessed May 6, 2026
- 6Stats Homebrew Cask
Accessed May 6, 2026
Research queries: Stats vs eul Mac system monitor 2026; Stats macOS GitHub stars 2026; eul SwiftUI system monitor abandoned; best free Mac system monitor