What HeyGen is built for
HeyGen turns a script into a video of a presenter speaking it. You pick one of its stock avatars, of which its free plan alone offers more than five hundred, or create a digital version of yourself, and the avatar reads your words with matching lip movement. Paid plans add voice cloning and video translation, listed on its pricing page as 175 languages and dialects. It also includes a screen recorder, so a presenter can appear alongside a recording of your product.
At the end of September 2026 its pricing page listed a free plan with three videos a month of up to one minute each, carrying a watermark; a Creator plan at $29 a month, or $24 a month billed yearly; a Pro plan from $49 a month; and Business plans from $149 a month plus $20 per seat.
That makes it a good fit for training videos, internal updates, personalised sales messages and marketing videos that need a human face in several languages, all without a camera or a studio.
A presenter or the product?
For most software, the most persuasive thing you can show is the software itself: the report that appears, the workflow that takes one click, the number that updates. A presenter can introduce that, but every second on a face is a second not spent on the screen, and viewers who watch muted in a feed get little from a talking head without the product behind it.
There are exceptions. A founder speaking to camera can build trust, especially for a new company or a product sold on relationships. A presenter helps when the product is abstract, like an API or an infrastructure tool, and there is little to see on screen. And in training, a friendly face keeps attention through a longer lesson.
So the choice depends on the job. If the video is about the product, the screens should carry it. If it is about you, your company or a concept, a presenter may.
How ShotDemo differs
ShotDemo has no avatars. Everything in its videos is your product: your real screenshots, never redrawn, with a camera that moves toward the feature each line talks about.
You give it screenshots of your app, or just your website's address, which it visits to capture the pages that matter. Its AI describes each screen and writes a script, one caption and one spoken line per screen, then plans the camera: a push toward a chart, a pan down a long table, a hold on a header. You can change any of it in the Studio, a timeline editor that plays the video as you edit. Then it renders every shape, 16:9, 9:16, 1:1 and 4:5, each as a full tour and a fifteen-second ad, with a voice, captions, a subtitle file, a music bed and a thumbnail.
The voices are 24 licensed Microsoft Azure voices in English (US, UK, Australia and India), Hindi, German, French, Spanish, Portuguese and Japanese. There is no voice cloning and no automatic translation; to make a version in another language, you write or paste the script in that language and choose a voice for it.
It is priced per video, not per month: a free watermarked preview of your real video first, then $58 once for that video, plus tax where it applies.
Where HeyGen is the better choice
- The video needs a person on screen, whether a stock avatar or a digital version of you.
- You want your own voice, cloned, rather than a stock one.
- You need the same video in many languages, with lip movement matched to each.
- You make many videos a month, such as training, updates or personalised outreach, where a subscription pays off.
- The subject is a concept or an announcement more than a product interface.
Where ShotDemo is the better choice
- The video is about your product, and viewers need to see its real screens clearly.
- Your interface is dense with numbers and labels that must stay sharp and correct; the example on this page, a data-heavy analytics app, shows why.
- You need the tall, square and 4:5 versions laid out for Reels, Shorts, TikTok and feeds, plus a fifteen-second ad cut.
- You want the camera to direct attention to each feature as it is mentioned.
- You make a video now and then, and would rather pay once for each than keep a subscription.
At a glance
| HeyGen | ShotDemo | |
|---|---|---|
| What is on screen | An AI presenter, optionally with your media or screen recording | Your product's real screens, with camera moves |
| Starts from | A script, an avatar and a voice | Screenshots, or your website's address |
| Script | You write it, with AI help | AI drafts it from your screens and site; you edit every line |
| Voices | Stock voices and voice cloning | 24 licensed voices; no cloning |
| Languages | Translation into many languages | Write the script in the language you need |
| Shapes | Several shapes | 16:9, 9:16, 1:1 and 4:5, full tour and a 15-second ad |
| Price, end of September 2026 | Free plan with watermark; paid from $29 a month | $58 per video plus tax where it applies; free preview |
Prices change often; check each company's pricing page before deciding.
Can you combine them?
Yes, and it can work well. A short HeyGen clip of you introducing the product, followed by a ShotDemo tour of the screens, gives viewers a face and a proof. Keep the introduction short, ten seconds or so, so the product arrives before attention fades, and match the music and captions across both parts so it feels like one video.
Alternatively, use each where it is strongest: a presenter video for your "why we built this" story and personalised sales messages, and a product video for your landing page, ads and launch posts.
Honesty in AI video
Whichever tool you use, a product video is a promise about what the customer will get. Synthetic voices and presenters are widely accepted when they are used openly. What erodes trust is a video that shows something the product does not do. Keep every claim in the script checkable against your product and your website, and show real screens wherever the viewer is judging the product itself. Our guide to writing a product demo video script covers how to keep an AI-written draft accurate.