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Mission Center vs Astra Monitor: catalog facts
Mission Center	Astra Monitor
Free Free and open source under the GPL 3.0.	Free Free to install from its public GitHub repository.
Linux	Linux
Familiar Task Manager layout with per-core and per-process detail GPU usage for AMD, Intel and NVIDIA cards	Covers CPU, GPU, memory, storage, network and sensors Always visible in the GNOME panel
Linux only Fewer sensors and less depth than a command line monitor	Only works on the GNOME Shell desktop Panel indicators are less detailed than a full monitoring app
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.