FreeConferenceCalling.com vs Vast Conference

FreeConferenceCalling.com provides on-demand audio conference calls that participants join by dialing a toll number and entering a conference code. The web service is available 24/7 without advance scheduling through the provider. Each conference supports up to 1,000 callers, with up to 25 speaking simultaneously. Calls begin with a six-hour limit; the host can extend that period by entering the host code when prompted. A browser manager displays participants, supports muting and unmuting, and provides question-and-answer controls. Hosts can record calls, with recordings converted to MP3 and stored for listening, downloading, podcasting, or sharing. Telephone keypad controls include locking, recording, name announcements, attendee counts, and ending calls. Participants' telephone providers may charge long-distance fees, while the service says it does not charge. The free plan costs nothing.

Vast Conference provides cloud-based audio conferencing, online meetings, and video conferencing for businesses. Audio conference calls support up to 1,000 callers; video meetings support up to 49 simultaneous HD feeds and 250 viewers. Operator-led calls are offered for complex or critical business events, and webcasts can stream audio, video, and presentations to large audiences. Local and toll-free conferencing numbers are available in over 70 countries. Listed plan features include web audio, HD video, screen sharing, cloud recording, messaging, file transfer, and detailed reporting. Hosts can require participant names, view attendees, lock calls, and use a waiting room. Integrations include Google Calendar, Microsoft Office 365, an Outlook plugin, Google SSO via SAML 2.0, and Okta one-time-password verification. The service is available on Android, iOS, macOS, Windows, web, and as a Chrome extension for scheduling meetings and sending templated invitations. A 14-day trial is listed. Paid plans are listed at $2 a month for Pay As You Go, $13.19 a month for Essentials, $17.59 a month for Standard, and $35.19 a month for Professional.