Skype
Freemium
Skype is an instant messaging and VOIP (Voice Over Internet Protocol) client to communicate with people in a distant place.
Tox
Open Source
Tox is a peer-to-peer instant-messaging and video-calling protocol that offers end-to-end encryption.
Linphone
Open Source
Linphone is a free voice over IP (VoIP) service and SIP client.
FaceTime
Freemium
FaceTime is a proprietary videotelephony product developed by Apple Inc. FaceTime Audio is an audio-only version.
WhatsApp Messenger
Free
WhatsApp Messenger is an instant messaging platform owned by Facebook.
Signal
Open Source
Signal is the most scalable encryption tool.
Wire
Free
Wire is a cross-platform, encrypted instant messaging client created by Wire Swiss. It is available for iOS, Android, Linux, Windows, macOS and Web browser cl…
Compare Google Duo with alternatives
Compare WhatsApp Messenger and Google Duo and decide which is most suitable for you.
Compare Linphone and Google Duo and decide which is most suitable for you.
Compare FaceTime and Google Duo and decide which is most suitable for you.