An honest comparison — both tools are good at different jobs. Here's the actual difference, so you pick the right one.
Synthesia's signature is AI avatar presenters — a virtual human reading your script to camera, popular for corporate training at enterprise pricing.
ireel skips the presenter. The content is the star: animated code, product tours, charts, news graphics, profile cards — narrated by a natural voice, generated from your markdown or URL, at indie pricing ($9/mo Pro).