Turn your phone sideways — a PDF page is tiny held upright, and this reader is built for the wide view.
How it works
- Open a PDF from your phone or tablet — it stays in this browser.
- Read it. Drag the highlighter down the left bar over any line.
- Tap a word or a paragraph to have it explained, in the book's own context.
Explaining is the paid part: buy a key ($3 a month, $29 a year), then paste it into License to unlock this device.
Your books
Have any word explained
Reading and highlighting are free. Asking for a word or a paragraph to be explained, in the book's own context, is the paid part.
$3 a month · $29 a year — no account, cancel any time.
Your license
Terms
Your books never leave your phone: they are stored in this browser, not on our server. Only the words you ask about are sent, and only to be explained.
A license is a subscription, cancellable at any time from the receipt e-mail. The service is offered as it is, with no promise that it will suit you.
About us
A quiet reader for one purpose: reading an English book on a phone, and understanding it. Highlight what matters, ask about what does not make sense.
Built small, by two people, for people learning to read in a second language.