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OpenNetMeter vs Wise System Monitor: catalog facts
OpenNetMeter	Wise System Monitor
Free Free and open source under the Apache-2.0 license.	Free Free to download and use.
Windows	Windows
Tracks data usage and live network speeds Simple interface for non-technical users	Processes, CPU, memory and network traffic in one window Simple interface for non-technical users
Windows only Basic feature set	Windows only Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

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