A lot of people liked Eul because it was small, simple, and easy to keep in the menu bar. Better Resource Monitor aims for that same kind of everyday usefulness, but with active maintenance, support for current Macs, and lower overhead on Apple Silicon.
Better Resource Monitor vs Eul
Feature
Better Resource Monitor
Eul
Mac App Store
Full Features
Limited
Admin Password / Privileges
None (Sandboxed)
None
GPU API Stability
Public API
Private API
Memory Footprint
~15 MB
~40 MB
CPU / Energy Impact
< 0.1%
High (M-Series)
App Size
< 7 MB
~5 MB
Privacy / Telemetry
100% Offline
Offline
Status
Active
Unmaintained
Language
Rust
Swift
Price
Free
Free
License
MIT
MIT
Why people move on from Eul
Eul still has a nice, minimal feel, but it is no longer being actively maintained. That matters more for a system monitor than it does for most apps, because macOS keeps changing the APIs and hardware details these tools depend on.
Better fit for newer Macs
On Apple Silicon, Better Resource Monitor stays under 0.1% CPU and uses about 15 MB of memory. That makes it easier to leave running all day, which is the whole point of a menu bar monitor in the first place.
Technical choices, practical result
Better Resource Monitor uses public APIs for GPU data, stays sandboxed, and is available on the Mac App Store with full features. Those are technical details, but the practical result is simple: a monitor that is easier to install, easier to trust, and less likely to break on the next macOS update. If you liked Eul's simpler style but want something current, Better Resource Monitor is on the Mac App Store and covers the same everyday use case. The source is on GitHub if you want to look before you install.
Comparison questions
What is Better Resource Monitor?
A free, open-source menu bar app that shows CPU, memory, GPU, and network usage on macOS. Written in Rust. Under 0.1% CPU and about 15 MB of RAM.
How much CPU and memory does it use?
Under 0.1% CPU and about 15 MB of RAM on an Apple M1. For comparison, Stats uses ~50 MB and iStat Menus uses 100+ MB. The app binary is under 7 MB.
How does GPU monitoring work?
On macOS, it reads device utilization from Apple Silicon GPUs through Apple's public IOAccelerator API. That keeps GPU monitoring available in both the App Store and GitHub versions without relying on private APIs or sudo.
Does it collect any data?
No. Zero network requests, no analytics, no telemetry. Everything stays on your machine. The source code is on GitHub if you want to verify that yourself.
Does it drain MacBook battery?
No. Monitors that poll fans and thermal sensors keep Apple Silicon from entering deep sleep. This app skips those readings entirely, which is why it sits under 0.1% CPU.
How is Better Resource Monitor different from Eul?
Both are lightweight options. Better Resource Monitor is narrower, actively packaged for the Mac App Store, and focuses on CPU, memory, GPU, and network.
Which one is better for daily menu bar monitoring?
Better Resource Monitor is the simpler choice if you want a maintained Mac App Store app with the core numbers visible all day.