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inSSIDer vs wavemon: catalog facts
inSSIDer	wavemon
Freemium Free with an Oscium account. Advanced features require a paid subscription.	Free Free to download and build from source.
Windows, macOS	Linux, Command line
Makes channel overlap and interference immediately obvious Client-level inspection of a chosen access point	Live signal level display and history in the terminal Scan screen for nearby wireless networks
Requires a free account to use at all Advanced features need the paid MetaGeek Plus subscription	Linux only Text interface only
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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