
Underlined - Bookshelf Tracker
Reading Log, TBR, Highlights
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Free
In-App Purchases
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About
You underline as you read. Then the lines stay in the book, because typing one out is more work
than it is worth in the moment.
Underlined is a reading tracker built around getting them out. Photograph the page, draw a box
round the passage, and it is yours.
A PASSAGE WITHOUT TYPING IT
• Photograph the page and draw a box round what you underlined. Nothing is retyped.
• The box is coarse on purpose: it only has to contain the passage. The words are trimmed back
to whole sentences, so a box that clips a few still gives a clean quotation.
• The page number is read off the photograph, so keeping a line from page 214 moves your reading
progress to 214. When it cannot be read, the app asks.
• Text read off a page is never quietly corrected. A word that looks wrong is offered as a
suggestion — against word lists carried on the phone, in twenty-six languages — and nothing
changes until you say so.
• Star the ones that matter. Add a thought underneath while it is still fresh.
A SHELF IN ONE PHOTOGRAPH
• Point the camera at a row of spines instead of typing forty titles.
• Books standing up, books lying flat, a shelf shot at an angle, all without turning the
picture.
• A single cover works too, for the book in your hand.
• Everything found is shown to you first. You choose which go on the shelf and which shelf.
YOUR READING YEAR
• One goal for the year, paced against how far into the year it actually is — not against a
flat count.
• Three shelves and no ceremony: want to read, reading, finished. Your TBR is just a shelf.
• Keep the page you are on; the last page finishes the book on its own.
• Write down how a book left you, in a sentence or two.
• Statistics about reading, not about scores: passages kept this month, this year and all time;
how many you starred; how long they run; books finished, by year.
WHAT YOU KEEP COMES BACK
• A passage resurfaces each day, from your own collection.
• Search every line you ever kept, with your words marked where they were found.
• The ones you return to rise: the app counts which passages you come back to.
• Dig into a passage with a model that runs on your phone, never a server. (Recent iPhones.)
• Read a passage in another language through Apple's own translation sheet.
DISCOVER
• Passages other readers underlined, narrowed by subject, in the languages you read.
• Keep the ones that stay with you; they join your own shelf.
• Find the book behind a line: what it is about, more by the author, books shelved beside it,
and where to buy a copy.
• Offer a passage of your own if you like — a button you press, never something the app does on
its own. Anything can be reported and taken down.
TAKE IT WITH YOU
• Send a passage as a picture, set as a page rather than a screenshot.
• Export one book's passages, or everything you have ever kept, as a PDF set at paperback size.
YOUR LIBRARY STAYS YOURS
• No account. Nothing to sign up for and nothing to sign in to.
• Your books, your progress and your passages live on your phone.
• The app does not upload your notes and it does not track you.
• Eight languages in the app itself, and passages in twenty-six.
• A colour for every book; paper by day, ink by night.
FREE AND PRO
Five books, free, with every feature working — the camera included. Keeping passages is free
without limit and always will be: it is what the app is for. Underlined Pro opens the shelf to as
many books as you keep.
SUBSCRIPTION
Underlined Pro is an auto-renewing subscription: $2.99 a month, or $19.99 a year. Payment is
charged to your Apple Account at confirmation of purchase. It renews automatically unless turned
off at least 24 hours before the period ends; manage or cancel it in your Apple Account settings.
Privacy policy: https://www.threedollarclub.com/underlined/privacy.html
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Discover passages come from Wikiquote, used under CC BY-SA 4.0. Book information comes from Open
Library.
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What's New in Underlined
1.1
September 15, 2026
Underlined now finds your underlined lines on its own: point the camera at a page and the passages are picked out for you. Faster scanning, one-tap page selection for open books, and fixes across all eight languages.
MoreSubscription plans
Underlined - Monthly
Unlimited books. Every feature, no cap.
$2.991 Month





