Litra

Support

Updated September 4, 2026

Write to us: serartinfo@gmail.com. A real person reads it, and we answer in English. There is no ticket number to quote and no form to fill in — just tell us what happened.

Below are the questions we get asked most. If yours is not here, the email above is the fastest route.

Which files can Litra open?

You can also make a document without a file at all: scan printed pages with the camera, dictate or type a note, or paste text in.

Litra does not open DRM-protected files — a book bought in Apple Books, Kindle or Google Play carries the store's protection and only that store's app can open it. It also does not open .mobi, .azw, .djvu or Word documents. Converting one to EPUB with a tool like Calibre works.

How do I add a book?

Tap the + button on the library, then pick where the text is coming from:

If you downloaded a book in Safari or received it by email, save it to Files first (Share → Save to Files), then add it from the picker.

After a book is added, Litra indexes it in the background so Orb can find things in it later. You can start reading immediately; a long book finishes indexing while you read.

What can Orb actually do?

Orb is the assistant inside the book. Tap the orb while reading and ask in your own words — by typing, or by holding it to speak. It searches the actual text of the document you have open and answers from what it finds, so it knows where you are and what you have read.

Things it is good at:

It answers from your book, not from memory of the title — but it is still a language model and it can be wrong. Check anything that matters against the page. Do not use it for medical, legal or financial decisions.

What are Orb credits, and what uses them?

Orb credits are how Orb's work is metered. A credit is priced against what an answer really costs to produce, so a quick question costs less than a piece of research that reads half a chapter. A typical question is a handful of credits; the app shows your balance in your profile and tells you roughly how many questions it is worth.

Credits are spent by: asking Orb a question, dictating with the microphone, and choosing cloud recognition for a scanned page. They are not spent by reading, highlighting, taking notes, read-aloud, speed reading, or adding and indexing a book — a book you add costs you nothing.

A Litra Pro subscription includes an allowance that refreshes over the life of the subscription. If you run out before it refreshes, you can top up with a credit pack from your profile. Pack credits do not expire.

Does Litra work offline?

Mostly, yes. Everything about reading works with no connection at all: opening a book, turning pages, search, table of contents, highlights, notes, bookmarks, themes and fonts, speed reading, and read-aloud — the voices are bundled inside the app, not streamed.

What needs a connection: Orb (the models run in the cloud), dictation, cloud page recognition, and iCloud sync between your devices. Those controls tell you when they are unavailable rather than spinning forever.

Can Litra read a book aloud?

Yes. Read-aloud runs entirely on the device — no streaming, no connection needed, and nothing about the book leaves the phone to speak it. It follows along, highlighting the sentence being read, and the speed goes from half to triple. It keeps playing with the screen locked and works with the lock-screen controls.

Speed reading is separate: a pacer that walks the words in place on the page, at a words-per-minute rate you set, so you read faster with your own eyes instead of listening.

How do I cancel the free trial or my subscription?

Apple handles subscriptions, so cancelling happens on Apple's side:

  1. Open iOS Settings and tap your name at the top.
  2. Tap Subscriptions.
  3. Choose Litra, then Cancel Subscription.

Or go straight to apps.apple.com/account/subscriptions. Cancel at least 24 hours before the trial or the current period ends, otherwise Apple charges the next one. You keep access until the end of the period you have already paid for. Deleting the app does not cancel a subscription.

Refunds are Apple's too: reportaproblem.apple.com. If something went wrong on our side, tell us and we will back up your request.

I got a new phone, or reinstalled. Where are my books and my subscription?

Litra has no login, so nothing has to be typed back in. On the new device:

If a purchase does not restore, check you are signed into the same Apple ID that bought it, then write to us with the date of purchase.

How do I delete everything?

Open your profile in the app and tap Delete My Data at the bottom. After two confirmations it erases your account on our server — including credits and their history — the app's iCloud database, and the books and app data on the device. It cannot be undone, and credits are not refunded.

It does not cancel a subscription; only Apple can do that, so cancel first if you mean to. Details of exactly what is erased, and the two anti-abuse records that deliberately survive, are in the Privacy Policy.

Something is broken. What do you need from me?

Email serartinfo@gmail.com with as much of this as you have:

Feature requests and complaints go to the same address, and we read all of them.

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