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    Multi-tenant · AI-safe by design

    AI-Powered Digital Library for Indian Institutions

    Read, listen, and chat with your books. Responsive EPUBs, page-accurate PDFs, natural text-to-speech, and Varta — the study assistant that answers with strict textbook citations.

    Book a DemoExplore Guest Library
    ReadListen
    One book, every mode — synced.
    Chapter 7
    READ · LISTEN
    Book
    Buddy
    अBकoaबkeपrगs
    A day with Book Buddy

    One student. One textbook. Every hour of her day.

    Follow Ananya, B.Sc. Physics, from the 7 am bus to lights-out: the same Chapter 7, in whichever mode the moment needs. Scroll, and watch the day move.

    DAWN
    07:10
    07:10Listen
    09:30Read
    13:15Annotate
    17:40Ask Varta
    21:30Revise
    23:05Synced
    07:10On the bus · Listen

    The chapter picks up exactly where she paused.

    Natural-voice narration of Chapter 7 at 1.25×, sleeping at chapter end. No juggling earbuds and a PDF.

    Physics
    Class XI
    Ch 7 · Heat & Thermodynamics
    Narrated by Meera
    2:34 / 8:121.25×Sleep · end of chapter
    09:30In the lecture · Read

    Same page as the professor, reflowed for her phone.

    EPUBs reflow to any screen; PDFs keep the publisher's exact layout. One highlight, and it follows her to every device.

    Chapter 7 · p. 142
    Specific heat capacity

    Heat flows from a body at higher temperature to one at lower temperature. The specific heat capacity of water is 4186 J/kg·K, which makes it an excellent thermal buffer.

    Highlight Note Ask Varta
    13:15Library break · Annotate

    Ink, shapes and voice notes, right on the PDF.

    PDF Studio runs in the browser: freehand ink, smart shapes, redaction, OCR search and audio notes. Nothing to install.

    — page 142 —
    Voice note · 0:18 — “ask sir about latent heat”
    17:40A doubt · Ask Varta

    Varta answers from her textbook, and shows the page.

    Every answer cites the page and paragraph. If it isn't in the book, Varta says so.

    Why is water's specific heat so high?
    Hydrogen bonding between water molecules — breaking those bonds absorbs a lot of energy before the temperature can rise.
    p. 142 · ¶2 Saved to Sanchika
    21:30Night revision · Sanchika

    Today's highlights are already flashcards.

    Sanchika gathers highlights, notes and Varta answers from every book into one notebook, with tonight's cards ready.

    Card 3 of 12 · QuestionWhy does water take so long to heat up?
    Answer · from p. 142Hydrogen bonds absorb energy first — specific heat 4186 J/kg·K.
    12 cards due 9-day streak
    23:05Lights out · Synced

    Tomorrow starts on page 142, on any device.

    Position, highlights and bookmarks sync across phone, laptop and the installed app.

    Phone64%
    Laptop64%
    Installed app64%
    For teachers & admins

    See what they read. Know where they struggle.

    Real reading time, pages and quiz results, counted from what students actually did, and shown to each person only for the students they teach.

    Who sees what
    Class teacherSees every student in the class they look after
    • Minutes read, pages and books opened
    • Days active and when each student last read
    • Quiz accuracy, book by book
    Subject teacherSees only the students and subject they teach
    • Reading of books in their own subject
    • The students an elective or group reaches, and no others
    • Quiz results on those books
    Institution adminSees the whole institution, class by class
    • Who is reading, and for how long
    • Quiz accuracy across classes
    • Any student, with the same figures a teacher sees
    Platform super-adminSees any institution, in totals
    • Reading across institutions
    • Active readers and quiz activity
    • Never a student's questions or notes
    Teachers and admins see how many questions a student asked Varta, never the questions themselves, and never a student's private notes. Every time a teacher opens a student's figures, it is recorded.
    01Honest reading timeOnly time a student was actually reading counts: an idle book left open does not.
    02Quizzes with real scoresQuizzes on the books they read, each question scored once, shown by student and by book.
    03Only what your role needsA subject teacher sees their subject. A class teacher sees their class. Nobody sees more.
    InstitutionBranchClassStudent
    Secure for Bharat

    Rings that never touch another tenant.

    From one coaching centre to a multi-campus university, every institution lives inside its own boundary.

    • Multi-tenant isolation
      Each institution's data sits in its own logical boundary.
    • Branch hierarchy
      Campuses, branches and departments, with seats and books per branch.
    • Role-based access
      Admins, librarians, teachers, students. Least privilege by default.
    • SSO ready, audit-logged
      One campus identity; every access recorded.
    Launching 2026 · Founding institutions onboarding now
    0
    Reading modes
    0
    PDF Studio tools
    0%
    Citation-backed answers
    0.0%
    Uptime target
    Built with our founding cohort
    “We need to move thousands of students to digital textbooks without standing up new infrastructure.”
    Dean of Academics · design-partner persona
    “Varta matters because it answers only from the books we upload, and cites the page.”
    Head of Sciences · design-partner persona
    “Annotating a PDF and turning those highlights into flashcards would halve my revision time.”
    Postgraduate student · design-partner persona
    Illustrative voices from design-partner interviews.

    Questions, answered

    When you upload a PDF or EPUB, Varta indexes its exact content. A student's doubt is answered strictly from that text, with clickable citations to the page.

    The personal study archive in Book Buddy. It collects every highlight, annotation, Varta explanation and flashcard across all of a student's books.

    Yes. Each institution is isolated; reading data is never shared across institutions or used to train public models.

    Yes. Bulk-upload PDFs and EPUBs; scanned PDFs are OCR'd so they are searchable and AI-ready.

    Every book gets natural-voice narration, and students can switch between reading and listening without losing their place.

    Books reflow for phones and tablets in the browser, and Book Buddy installs as an app.

    Start the semester on Book Buddy.

    Founding institutions are onboarding now. Bring your PDFs and EPUBs; we handle the rest.

    Book a demo Explore guest library
    Book Buddy

    Your campus library, reimagined for the digital age. Empowering students and institutions across India.

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