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Sipdroid vs Linphone: catalog facts
Sipdroid	Linphone
Free Free and open source under GPL-3.0-only.	Free The app and the basic SIP service are free.
Android	Windows, macOS, Linux, Android, iOS
Connects to SIP services for VoIP calls Supports video calling	Works with any standard SIP account Desktop and mobile builds from one project
Requires a SIP service.	Needs a SIP account or PBX to be useful Website is primarily in French
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-only	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 8, 2026	Official website Full listing and sources Checked September 23, 2026

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