Firefly is described as 'softphone is the easiest way to try Freshtel's great service from the comfort of your PC' and is an app in the Social & Communications category. There are more than 25 alternatives to Firefly for a variety of platforms, including Android, Online / Web-based, iPhone, Windows and Android Tablet. The best alternative is Jitsi, which is both free and Open Source. Other great apps like Firefly are Skype (Freemium), Wire (Free Personal, Open Source), Hangouts (Free) and Zulip (Free Personal, Open Source).
Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM, Windows Live, Yahoo!, GTalk/Hangouts extensions, as well as OTR, ZRTP, etc.
Skype is the most popular free voice-over IP and instant messaging service globally. It allows users to text, video and voice call over the internet. Users can also call landlines and mobiles at competitive rates using Skype credit, premium accounts and subscriptions.
Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure end-to-end-encryption. Why Wire?
aTalk is an XMPP client that supports the following features: * Instant messaging in plain text and End-to-End encryption with OMEMO or OTR * OMEMO encryption is available during multi-user group chat session, giving users maximum privacy and security * Supports both voice...
Nertivia is an chat client that allows you to chat to anyone across the world. There are a lot of features that don't require you to pay at all such as, gif profile pictures, free custom emojis and more coming soon!