Read faster.
Understand more.
A reading app that paces your eyes, then turns every chapter into flashcards, quizzes, and mind maps — generated privately, on your device, by Apple Intelligence. Pay once, own it forever.
Download for iPhone & iPadOne-time purchase · No account · No subscriptionNot on iPhone? Try the free speed-reading tools in your browser →
The reader
A quiet page that keeps your eyes moving
The highlight paces your reading, so your focus never has to find its place. Drift, and it waits. Fling ahead, and it follows. Import EPUBs from anywhere, share articles straight from Safari, or paste anything.
- Paper Morning light, warm cream, black tea.
- Sepia An old paperback on a long afternoon.
- Midnight Candlelit text for the last chapter of the night.
The study library
Every chapter becomes a study set
Apple Intelligence reads with you — on the phone, never in a cloud — and builds the material you’d have made by hand.
Flashcards
Decks written from each chapter as you watch, dealt card by card. Mastery rings track what you actually know.
Quizzes
A short check per chapter, with the model explaining why the right answer is right.
Mind maps
Chapters drawn as living maps — concepts branch onto the screen as they’re found, each linked back to its passage.
Free, in your browser
Train the eyes before you buy anything
Forty speed-reading exercises and text utilities, free and account-free, on any device. The same drills OneWord paces you through on iPhone.
- TachistoscopeFlash words for milliseconds to build instant recognition.
- Reading Speed TestMeasure your words per minute, with a comprehension check.
- Schulte TableWiden peripheral vision by finding numbers in order.
- Reading PacerRSVP pacing to set a faster rhythm and stop regression.
- Subvocalization ReducerQuiet the inner voice that caps you at speaking speed.
- Visual MemoryHold more of a line in one glance with recall drills.
Private by architecture
There is no cloud. That’s the feature.
No account to create, no server holding your library, no reading data leaving the device. Your books, positions, highlights, and every AI-generated study set live on your iPhone — which is why all of it works in airplane mode.
Pricing
Pay once. Own it forever.
OneWord is a tool, not a subscription. Try it free with three books; one purchase unlocks everything, including every future update.
Reading works on every iPhone and iPad. AI study tools require Apple Intelligence — iPhone 15 Pro or later with Apple Intelligence enabled.
OneWord Unlimited
One purchase, every future update
- Unlimited books and articles
- Reads offline — planes, subways, anywhere
- On-device AI flashcards, quizzes & mind maps
- No subscription, no renewal, ever
Questions
The short answers
And if yours isn’t here, the long ones are an email away.
Do I need an account?
No. There is nothing to sign up for — the app has no accounts at all. Your purchase is tied to your Apple ID and restores on any of your devices.
Does it really work offline?
Entirely. Books, positions, flashcards, quizzes, and mind maps all live on the device. Only importing a web article and buying the unlock touch the internet.
What can I read with it?
DRM-free EPUBs, web articles shared from Safari or any app, and pasted text. PDF support is on the way.
Where does the AI run?
On the phone, with Apple Intelligence. Your books are never uploaded — study material generates in airplane mode just fine.
Is it a subscription?
No. One purchase unlocks everything, including future updates. Three books are free first, so you can try the whole app.