iPhone · iPad · Android
A reader for the books you have to think about. Select the paragraph that lost you and an explanation opens beside it, so the passage stays on screen while you read.
Get it on iPhone & iPad Get it on Android
Explain
Tap Explain and the answer opens next to the passage instead of covering it. You can ask a follow-up right there.
Each explanation is saved with the exact text you selected. A month later the highlight is still in the book with its answer attached, which is something a chat window can't give you.
Math comes through intact. Equations are sent to the model as LaTeX, so a dense line of algebra gets explained as algebra, not as the garbled text you get from copy and paste.
Library
Most reading apps assume you already have files. Readholic opens your PDFs and EPUBs, and it can also download from three free libraries.
Study
Give Readholic a passage or a whole chapter and it writes flashcards from it, then keeps quizzing you until you know them.
Quiz yourself with multiple choice, fill-in-the-blank, or written answers that get graded. Due cards wait in the Study tab and return on a spaced-repetition schedule.
Readholic keeps a short summary of the concepts you have already studied, so later explanations build on them instead of starting from zero every time. You can read that summary, turn it off, or clear it in Settings.
In the Forum you'll find decks other readers made for the same books. Only the cards are shared, and only when their author chooses to publish them. A deck you download becomes yours, with its own review schedule.
Languages
The app is available in ten languages and can explain things in sixteen. The explanation language is set separately from the book's, so you can read an English textbook and get explanations and flashcards in Spanish, Japanese, or Arabic.
Privacy
Books, highlights, notes, reading position and review history never leave your account. A deck is only published to the Forum after you confirm it, and only the cards are copied. The book, your notes, and which cards you got wrong stay with you.
Neither the iOS nor the Android app includes one, not even a disabled one.
And we have no plans for an ad-supported tier.
Settings → Delete Account & Data.
The privacy policy has the details, including which model providers process explanation text and how long anything is kept.
Pricing
The AI features run on paid models, so they're part of Readholic Pro. A free allowance lets you try explanations and flashcards on your own books first, and the app always shows how much you have left.
$0
Everything you need to read.
$4.99 a month
or $39.99 a year.
