AirBattery displays battery levels for connected devices in the Mac Dock, menu bar, or widgets.
Open source
24 alternativeseul
eul monitors macOS system status from the menu bar, with dark mode, widgets, and Bluetooth battery level listed.
About eul
eul is an open source macOS app that monitors system status from the menu bar. It is written in SwiftUI and released under the MIT license. The README lists widgets for battery, CPU, memory, and network status, along with Bluetooth battery level and Dark Mode compatibility.
eul can be installed by downloading the latest release directly, through Homebrew Cask, or from the App Store. The README states that macOS 10.15 is the minimum version, and that some features are disabled because all SMC calls have been removed. It also includes a note that the version is out-dated.
Key features
- Menu bar display of macOS system status
- Battery, CPU, memory, and network widgets
- Bluetooth device battery level display
- Dark Mode compatible interface
- Installation through direct download, Homebrew Cask, or App Store
- Interface language support listed for 20 languages
Best for: macOS users who want to monitor system status from the menu bar and are comfortable with an open source app that the README describes as partly out-dated.
Good for
- Open source under the MIT license
- Multiple installation options: direct download, Homebrew Cask, and App Store
- Dark Mode compatible
Watch out for
- Requires macOS 10.15 or later
- Some features are disabled due to removal of all SMC calls
- The README notes that the version is out-dated
eul at a glance
- Website
- github.com/gao-sun/eul
- Category
- Software & Utilities › Mac Apps
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- macOS
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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eul FAQ
What is the minimum macOS version required?
The README states that macOS 10.15 is the minimum version, required for SwiftUI support.
How can eul be installed?
The README lists three options: download the latest release and drag the .app file into the Applications folder, install with the Homebrew Cask command (brew install --cask eul), or search for eul in the App Store.
Are all features available in eul?
No. The README notes that some features are disabled due to the removal of all SMC calls.
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