FreeConferenceCall.com is described as 'easy way to conduct free HD audio conference calls including audio, video and screen sharing with up to 1,000 participants at no charge' and is an app in the Office & Productivity category. There are more than 50 alternatives to FreeConferenceCall.com for a variety of platforms, including Online / Web-based, Windows, Android, iPhone and Mac. The best alternative is Discord, which is free. Other great apps like FreeConferenceCall.com are Jitsi (Free, Open Source), Skype (Freemium), Tox (Free, Open Source) and Hangouts (Free).
Whether you’re part of a school club, a gaming group, a worldwide art community, or just a handful of friends that want to spend time together, Discord makes it easy to talk every day and hang out more often. Create an invite-only place.
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.