Compare software

Smart-SIP-PhoneMicroSIP
Freemium

Free standard version, with a paid Pro version and branding options for businesses.

 Free

Free and open source under the GPL v2.

Windows, macOS, Linux, Android, iOS Windows
  • Works with any SIP PBX
  • Native packages for many Linux distributions plus Windows and macOS
  • Small and light on system resources
  • Works with standard SIP providers and PBX systems
  • Proprietary software
  • Needs a SIP account or PBX to be useful
  • Windows only; other desktops need Wine
  • No mobile apps
Downloadable app Downloadable app
Closed source Open source
License: Proprietary License: GPL-2.0
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

Checked October 1, 2026

Checked September 23, 2026

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