Premium
$39.99
- —20 AI summaries / month
- —Unlimited chat with any book
- —All four sources: books · YT · articles · PDF
- —Up to “long” depth
- —20 public + 5 private collections
- —YouTube MP3 export
№ 001 — A manifestoApril 2026For iPhone · iOS 18+
Summio
The reading app for the people who still read— and for those who want to start again. Trustworthy summaries. A library you carry. A conversation with every book.
Summio is an AI iPhone reading app that turns books, YouTube videos, long articles, and PDFs into structured editorial summaries you can chat with. Pick the depth you want — short, medium, long, or detailed — save quotes to a personal library, and review with spaced-repetition flashcards. Available in 27 languages, $39.99 a year.
Now you can listen to it, remember it, and ask it anything.
Audio summaries & podcasts
Turn any edition into a clean spoken episode — natural narration, chapter by chapter. Listen on the walk, the commute, the dishes.
A learning Companion
Spaced recall and gentle nudges bring the right idea back before you forget it. Finally, reading you actually keep.
Chat with any source
Ask the book, the video, the PDF or the article anything — as if the author were across the table, citations included.
01
Why we built it
“The average reader finishes twelve books a year. The average feed consumes as much in an afternoon.”
Reading did not get harder — life got louder. Between a new release and the next deadline, most of us lose the thread. Hours become obligations, months become years, and the pile of half-started books keeps growing.
Summio is an app built for readers — not a replacement for books, videos, articles or PDFs, but a reading companion that lives inside every page. It compresses a four-hundred-page book or a two-hour video into its essence — no filler, no padding, only the ideas that earned their place. Hours become minutes. Months become afternoons. What you used to consume in weeks now fits before dinner.
And the book is still there, waiting. Summio summarises when you need the gist, remembers what you cared about, and quietly hands the full text back when you are ready to sit down and stay. Everything it does is in service of reading — not more feeds, not more scroll, just the clearest path to the idea you came for.
02
Sources Summio supports
Books. Long videos. Long reads. PDF reports. Hand Summio anything worth thinking about — and get back a structured edition with chapters, quotes, takeaways, glossary, and citations you can reread.
- I
Books
Search by title or author across a catalogue of 100 000+ titles. Summio returns a full edition: chapter-by-chapter structure, quotes, key ideas, and a glossary — at any of four depth levels you choose: short, medium, long, or detailed.
- II
YouTube
Paste any lecture, podcast, or playlist URL. Transcripts are fetched and summarised into a clean editorial read. Playlists become collections; key timestamps stay intact.
- III
Articles
Long essays, magazine pieces, newsletter deep-dives. Drop a link and Summio produces a depth-aware condensation — short, medium, long, or detailed — without breaking the author’s voice.
- IV
PDFs
Upload research papers, manuals, reports, even scanned books. OCR runs when needed; structured summaries and an inline chat follow. Your document never leaves your account.
03
What Summio does
- IThe Summary
Editorial summaries at the depth you choose.
Four depth levels: short, medium, long, detailed. The structure follows your choice — chapters, pull quotes, glossary, takeaways. Never a bland abstract.
- IIThe Dialogue
A conversation with the book, the video, the PDF.
“What did the author mean here?” “How does this contradict chapter three?” Ask any source as if the author were across the table. The chat knows the full text — not just the summary — and answers with citations you can reread.
- IIIThe Listen
Every summary, read aloud for the commute.
Turn any edition into a clean spoken episode — natural narration, chapter by chapter. Listen on the walk, the train, the dishes. The same essence your eyes would read, now in your ears.
- IVThe Companion
It remembers, so you don’t have to start over.
A quiet companion that brings ideas back before you forget them — spaced recall, gentle nudges, small drills built from the very pages you chose. Reading is the easy part; keeping it is the gift.
04
How it happens
01
Pick the title
Any book. Any YouTube URL. Any article link. Any PDF. No sign-in ceremony.
02
Choose the depth
Short, medium, long, or detailed. You set the pace; the engine adapts the structure.
03
Read. Ask. Keep.
Read the edition. Chat with the full text. Save to your library — offline, across iPhone and iPad.
“
Every great book deserves a second reader — and a first one who has twelve minutes.
05
What we promise
If you ever dreamed of reading a hundred books a year — or two hundred — Summio makes that reach honest. We compress a book down to its essence; we condense a long video into a ten-minute read; we return only the ideas that earned their place. Hours become minutes. Months become afternoons. What used to take a year, a determined reader now covers in a season — properly, with notes, in any of twenty-seven languages.
- Hours into minutes.
- A two-hour lecture becomes a ten-minute read. A four-hundred-page book becomes an editorial edition you finish before dinner. The full text is still there, waiting for the evening it deserves. Reading never got faster — understanding did.
- No dark patterns.
- No trial traps, no pre-checked upsells, no hidden renewals. Cancel in one tap in the App Store Settings. The paywall is written to be read, not to trick. The price is what it says it is.
- Your library is yours.
- Export any collection as PDF or EPUB. Delete your account and everything leaves with you — no shadow backups, no silent data. Private collections stay private. The library travels with you; it never lives without you.
- Grounded, with citations.
- Every claim in a summary points back to a passage in the source. If we cannot ground it, we do not print it. The name on the cover is the book’s — never ours, never an engine’s. Built for readers who want to keep trusting what they read.
- Read it once. Keep it for good.
- Most of what we read quietly leaves us within a week. Summio works against that — a companion that returns the right idea at the right moment, nudges without nagging, and turns a finished book into something you actually still carry. Reading you remember is the only reading that counts.
06
The subscription
Max
$79.99
- —45 AI summaries / month
- —Unlimited everything
- —Up to “detailed” depth
- —All 27 languages
- —All five tones of voice
- —Early access to new instruments
◆ ◆ ◆
Begin reading tonight.
Install Summio on iPhone. Pick a title that has been on your list too long. Give it five minutes. Decide for yourself whether it deserves five hours.