AI YouTube Video Summarizer — Free, On iPhone
Summio's AI YouTube video summarizer turns any youtube video into a structured editorial reading at the depth you choose: short, medium, long, or detailed. Free on iPhone, available in 27 languages, with chat over the full source after the summary.
How it works
- Open Summio. Pick "YouTube video".
Tap the Create button on the home tab and choose the youtube video source.
- Paste the URL
Example: https://www.youtube.com/watch?v=…
- Pick depth → start reading.
Choose short, medium, long, or detailed. Tap any line to chat with the source.
What you get
- Works with lectures, podcasts, talks, interviews, playlists
- Timestamps preserved — jump back to the moment in the video
- Chat with the full transcript instead of the summary
Why Summio
| Feature | Summio | Single-purpose tools |
|---|---|---|
| Source breadth | Books, YouTube, articles, PDFs — one app | One source type only |
| Languages | 27 | English-first, a handful |
| Price | Premium $39.99/year ($4.99/month) | Varies — often higher |
Pricing
Common questions
Is there a maximum video length?
Practically no — Summio handles videos up to several hours. Very long lectures may take a minute or two to process.
Does it work with playlists?
Yes. Paste a playlist URL and Summio creates a collection where each video is summarised individually with cross-links.
What if the video has no captions?
Summio generates a transcript automatically using audio when YouTube captions are missing. Accuracy depends on audio quality.