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Bria Solo vs Zoiper: catalog facts
Bria Solo	Zoiper
Paid A free trial is offered, and multiple VoIP accounts require a paid plan.	Freemium Free softphone, with paid versions sold on the Zoiper site.
macOS	Windows, macOS, Linux, Android, iOS, Browser extension
Voice and video calling with call control features Works with up to five VoIP or call server accounts	Native apps on desktop and mobile TLS, SRTP and ZRTP call encryption
Requires a separate VoIP service or call server Multi-account support is limited to the paid plan	Proprietary, with some features in paid editions Encryption depends on server support
Downloadable app	Downloadable app, Browser extension
Closed source	Closed 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 October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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