The best alternatives to Tevent are Livestorm, TwentyThree, and Webinar Manager. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— The most accurate API for conversational speech-to-text
TwentyThree empowers marketing teams to integrate and successfully run video on their website, across all channels, with webinars, and track video data.
EasyCalendar is an easy to use yet powerful appointment scheduler for teams. You can customize the settings as per your use case and business flow with few clicks. It also integrates with other business tools and provides a tiny built-in CRM.
Zujo Now provides APIs and SDKs for web and mobile apps to accomplish communication features such as video calling, screen sharing, call recording etc.
Reach a Wider Audience With Pre-recorded Webinars. Create and schedule recorded webinars that feel interactive like live events. Creating pre-recorded webinars allows you to place the content online and have it readily available for anyone who wants to see it.