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Webinars · head to head

ON24 vs Synthesia

ON24 logo

ON24

Webinars

The digital engagement platform

From
$2000/month
Rated
-
Full reviewWebsite
Synthesia logo

Synthesia

Video Production

AI video creation with digital presenters

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Synthesia has a free tier, so it costs nothing to try first.
  • Each has a real cost: ON24 the Internet Archive's capture of ON24's homepage on 1 January 2021 named five distinct platform tiers, Webcast Elite, Engagement Hub, Target, Intelligence, and Connect, but pointed visitors to a 'Find your pricing fit' quiz rather than publishing figures.; Synthesia free plan limited to 10 minutes of video per month
  • They diverge on capability: ON24 covers Live webinars, Synthesia covers AI avatars.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which ON24 and Synthesia actually diverge.

Attributes where ON24 and Synthesia differ
AttributeON24Synthesia
Starting price$2000/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsWeb, Ios, AndroidWeb
CategoryWebinarsVideo Production
Founded19982017

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in ON24

  • Live webinars
  • Virtual events
  • Engagement hub
  • AI-powered analytics
  • Content hubs
  • Salesforce
  • Marketo
  • Eloqua

Only in Synthesia

  • AI avatars
  • 140+ languages
  • Video templates
  • Brand customization
  • API access
  • LMS integrations
  • PowerPoint
  • Api support

Both cover

  • Web support

What people use each for

The jobs each tool is most often brought in to do.

ON24

  • Event planningnot Synthesia
  • Ticket salesnot Synthesia
  • Attendee managementnot Synthesia
  • Virtual eventsnot Synthesia
  • Event marketingnot Synthesia

Synthesia

  • Training video creation with AI avatarsnot ON24
  • Multilingual video localisation with AI dubbingnot ON24
  • Enterprise video production and managementnot ON24

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ON24

  • The Internet Archive's capture of ON24's homepage on 1 January 2021 named five distinct platform tiers, Webcast Elite, Engagement Hub, Target, Intelligence, and Connect, but pointed visitors to a 'Find your pricing fit' quiz rather than publishing figures.

Synthesia

  • Free plan limited to 10 minutes of video per month
  • Starter plan limited to 10 minutes of video per month
  • Creator plan capped at 30 minutes of video per month
  • SSO/SAML authentication restricted to Enterprise tier

Pricing, plan by plan

ON24

$2000/month
  • Core$2000/month
    • Webinars
    • Engagement tools
    • Basic analytics
  • Professional$4000/month
    • Virtual events
    • Advanced analytics
    • Integrations
  • Enterprise$8000/month
    • Full platform
    • AI insights
    • Dedicated success manager

Synthesia

Free
  • BasicFree
    • 1,200 credits per month
    • Up to 10 minutes of video per month
    • 9 AI avatars
  • Starter$29/month
    • 14,500 credits per year
    • Up to 120 minutes of video per year
    • 125+ AI avatars
  • Creator$89/month
    • 44,000 credits per year
    • Up to 360 minutes of video per year
    • 180+ AI avatars

Which should you pick?

Choose ON24 if

  • You need live webinars.
  • You work on Web, Ios, Android.
  • You also want virtual events.
ON24 review

Choose Synthesia if

  • You need ai avatars.
  • You want to start without paying.
  • You also want 140+ languages.
Synthesia review

Questions people ask

Is ON24 or Synthesia better?
Neither clearly leads. ON24 starts at $2000/month and Synthesia at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ON24 or Synthesia?
Synthesia has a free tier; the other does not. Paid plans start at $2000/month for ON24 and Free for Synthesia.
Does ON24 or Synthesia run on more platforms?
ON24 runs on Web, Ios, Android. Synthesia runs on Web.
Can I use Synthesia for free?
Yes. Synthesia has a free tier, so you can try it without paying. ON24 starts at $2000/month.
What is ON24 best used for?
ON24 is most often used for event planning, ticket sales, attendee management, virtual events. Of those, event planning and ticket sales are not what Synthesia is typically brought in for.
What can ON24 do that Synthesia cannot?
ON24 covers Live webinars, Virtual events, Engagement hub, AI-powered analytics. Synthesia covers AI avatars, 140+ languages, Video templates, Brand customization. Both handle Web support.

Answered from the vendors’ own pages

Synthesia: How much does Synthesia cost?

Synthesia offers a free Basic plan with 10 minutes of video per month, Starter at $29 per month with 120 minutes per year, and Creator at $89 per month with 360 minutes per year. Annual billing provides 38% savings. Enterprise plans are available with custom pricing.

Source
Synthesia: What is included in Synthesia's free plan?

The free Basic plan includes 1,200 credits per month (approximately 10 minutes of video), 9 AI avatars, 3 personal avatars, and access to 160+ languages and voices. No credit card is required.

Source
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