DemoPolish
Rewrites a rough screen recording's narration and adds an AI voiceover in about 60 seconds.
Upload a screen recording and DemoPolish rewrites the narration script, records a studio-quality AI voiceover, and hands back a finished MP4 in about 60 seconds — no editing, no re-shoots. If one line sounds off, you can re-voice just that line while the rest of the video, and your download, stay untouched. Pricing starts at a $3 trial for 5 videos over 3 days, then $29/month for 100 videos; a card is required upfront and the paid plan starts automatically on day 3 unless you cancel.
What holds up
- +Fixes one line at a time — re-voicing a bad take doesn't touch or re-render the rest of the video.
- +About 60 seconds end-to-end, upload to download — fast enough to iterate against the real product.
- +Works with any recorder you already have (Loom, OBS, QuickTime) — no browser extension or new tool.
Mind the limits
- −Card required upfront, and the $29/month plan starts automatically on day 3 unless you cancel.
- −Videos are capped at 10 minutes — not built for longer walkthroughs or full product tours.
- −One thing only, by their own comparison: no multi-track editing or background music like Trupeer offers.
Picked here? Add the badge
Put it on your site. It links back to this page. Free for every listed product.
<a href="https://stillworks.dev/products/p/demopolish/"><img src="https://stillworks.dev/badge/demopolish.svg" alt="Picked by StillWorks" width="230" height="54"></a>