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WhyFi vs inSSIDer: catalog facts
WhyFi	inSSIDer
Paid A licence costs $10, with proceeds donated to charity.	Freemium Free with an Oscium account. Advanced features require a paid subscription.
macOS	Windows, macOS
Shows signal, latency, jitter and DNS timing together Colour-coded status in the menu bar	Makes channel overlap and interference immediately obvious Client-level inspection of a chosen access point
macOS 13 or later only Diagnoses problems rather than offering deep packet analysis	Requires a free account to use at all Advanced features need the paid MetaGeek Plus subscription
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 22, 2026

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