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Zoiper vs Linphone: catalog facts
Zoiper	Linphone
Freemium Free softphone, with paid versions sold on the Zoiper site.	Free The app and the basic SIP service are free.
Windows, macOS, Linux, Android, iOS, Browser extension	Windows, macOS, Linux, Android, iOS
Native apps on desktop and mobile TLS, SRTP and ZRTP call encryption	Works with any standard SIP account Desktop and mobile builds from one project
Proprietary, with some features in paid editions Encryption depends on server support	Needs a SIP account or PBX to be useful Website is primarily in French
Downloadable app, Browser extension	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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