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Comparison

kdpbook.io vs Librava (ex-BooksGenie): an honest comparison

Librava, formerly BooksGenie, is a low- and medium-content suite: 11 puzzle generators, coloring, journal and planner interiors, a children's story designer and a full-wrap cover maker, from $11.99/month (Basic exports PNG only; vector 300 DPI book exports start on the $16.99 Pro plan). kdpbook.io makes complete books in 36 types, including novels, non-fiction and comics, and adds a Kindle eBook and a listing sheet.

By kdpbook.io editorialPublished

We make kdpbook.io, so we’re not neutral. Everything about Librava below comes from its public pages as of (linked at the end); prices and features may have changed since.

At a glance

kdpbook.io compared with Librava
Criterionkdpbook.ioLibrava
OutputComplete interior PDF, laid out page by page300 DPI interior and cover files: PNG only on Basic, 10 vector book exports a day on Pro, unlimited PDF on Business
KDP specsTrim, bleed, margins, spine and page limits applied automatically, with a preflight checkMargins, gutter and bleed set from trim and page count; spine from page count and paper
CoverFull-wrap cover PDF sized from trim, paper and final page countFull-wrap cover, 4 designs per run, 300 DPI, spine sized automatically
Kindle eBookKindle EPUB (reflowable or fixed layout) + Kindle coverNot documented: no EPUB or Kindle file export listed (its cover page mentions eBook front covers)
Book types36 book types, from board books to novels, cookbooks, puzzle books and comicsLow- and medium-content: coloring, activity, journals and planners, puzzle books, worksheets, children's storybooks
PuzzlesGenerated and verified by code, with solutions11 generators, including sudoku variants, kakuro, Numberlink, Hashi and Drop Quote, with answer keys
Character consistencyCharacter reference sheets reused on every illustrationCharacter traits locked from the first description (“seed-locking”)
Languages34 KDP-supported languagesStories in English, Spanish, French, German and Italian
ListingListing sheet: title, description, 7 keywords, categories and AI-disclosure answersNot documented (its story designer says it handles the book's “descriptive fields”)
EditingPage editor with live preview, AI rewrites and image redraws; continuous KDP preflight and a 3D book previewDrag-and-drop editor with margin and bleed guides
PricingFree: 2,000 credits once, no card. Plans $25–$99/month$11.99–$35.99/month ($10.16–$28.75 billed yearly); free trial

  • Output

    kdpbook.io
    Complete interior PDF, laid out page by page
    Librava
    300 DPI interior and cover files: PNG only on Basic, 10 vector book exports a day on Pro, unlimited PDF on Business

  • KDP specs

    kdpbook.io
    Trim, bleed, margins, spine and page limits applied automatically, with a preflight check
    Librava
    Margins, gutter and bleed set from trim and page count; spine from page count and paper

  • Cover

    kdpbook.io
    Full-wrap cover PDF sized from trim, paper and final page count
    Librava
    Full-wrap cover, 4 designs per run, 300 DPI, spine sized automatically

  • Kindle eBook

    kdpbook.io
    Kindle EPUB (reflowable or fixed layout) + Kindle cover
    Librava
    Not documented: no EPUB or Kindle file export listed (its cover page mentions eBook front covers)

  • Book types

    kdpbook.io
    36 book types, from board books to novels, cookbooks, puzzle books and comics
    Librava
    Low- and medium-content: coloring, activity, journals and planners, puzzle books, worksheets, children's storybooks

  • Puzzles

    kdpbook.io
    Generated and verified by code, with solutions
    Librava
    11 generators, including sudoku variants, kakuro, Numberlink, Hashi and Drop Quote, with answer keys

  • Character consistency

    kdpbook.io
    Character reference sheets reused on every illustration
    Librava
    Character traits locked from the first description (“seed-locking”)

  • Languages

    kdpbook.io
    34 KDP-supported languages
    Librava
    Stories in English, Spanish, French, German and Italian

  • Listing

    kdpbook.io
    Listing sheet: title, description, 7 keywords, categories and AI-disclosure answers
    Librava
    Not documented (its story designer says it handles the book's “descriptive fields”)

  • Editing

    kdpbook.io
    Page editor with live preview, AI rewrites and image redraws; continuous KDP preflight and a 3D book preview
    Librava
    Drag-and-drop editor with margin and bleed guides

  • Pricing

    kdpbook.io
    Free: 2,000 credits once, no card. Plans $25–$99/month
    Librava
    $11.99–$35.99/month ($10.16–$28.75 billed yearly); free trial

What Librava is

A web studio for KDP books and printables. It has a coloring book maker (30–120 pages of line art from one theme), an activity coloring book maker, a journal and planner maker (lined, dotted, grid, graph, music and blank pages, calendars, habit trackers), a children's story designer that splits a story across pages and illustrates each scene, an AI interior designer, a full-wrap cover creator (4 designs per run, spine sized from page count and paper), and 11 puzzle generators with answer keys, plus a puzzle book maker that mixes them. A drag-and-drop editor shows KDP margin and bleed guides.

Where it shines

  • A deep puzzle range: sudoku (classic, Samurai, Jigsaw, Killer), kakuro, word search, crossword, criss-cross, cryptogram, Numberlink, Drop Quote, Hashi bridges, Worduko and mazes, with answer keys.
  • Several puzzle generators (sudoku, mazes, Hashi, Numberlink, Worduko) cost no credits; the others cost 0–2 credits a puzzle.
  • A low entry price: $11.99/month, or $10.16/month billed yearly.
  • Hands-on layout: a drag-and-drop editor for fonts, borders, headers and page numbers, with KDP margin and bleed guides.
  • Commercial rights to everything you generate, including during the free trial.

Librava pricing

  • Basic $11.99/month ($10.16/month billed yearly, $122/year), Pro $16.99 ($13.58, $163/year), Business $35.99 ($28.75, $345/year).
  • 500, 700 or 1,500 AI credits by plan. Basic exports PNG only; Pro allows 10 vector 300 DPI book exports a day; Business has unlimited 300 DPI PDF exports. The AI coloring and storybook suite is listed on Pro and Business.
  • AI coloring books and storybooks cost 5 credits per outline plus 10 per image; AI covers and interiors 5 credits per design. Top-up credits don't expire.
  • A free trial on every plan: 3 days on the plan cards, 2 days in its FAQ.

As published on September 28, 2026. See the current prices on its website.

Which one should you choose?

Choose Librava if…

  • Puzzle books are your main line and you want many puzzle types, most of them without credit costs.
  • You make low-content interiors, worksheets or printables and want a low monthly price.
  • You like arranging each page yourself in a drag-and-drop editor.

Choose kdpbook.io if…

  • You also publish novels, non-fiction, cookbooks or comics, not only low- and medium-content books.
  • You want a Kindle eBook and a KDP listing sheet from the same project.
  • You want to start without a card: 2,000 free credits once, and only what is produced is charged.

Questions

Is Librava the same as BooksGenie?

Yes. A banner on librava.ai says BooksGenie.ai has officially rebranded to Librava.ai. Its tools cover coloring, puzzle, journal, planner and children's story interiors, plus full-wrap covers.

Is kdpbook.io a Librava alternative?

Yes, if you want complete books rather than interiors. kdpbook.io writes, illustrates and lays out 36 book types and exports the interior PDF, the full-wrap cover, a Kindle eBook and a listing sheet. A 108-page puzzle book is estimated at about 460 credits, a 106-page kids' coloring book at about 1,803.

Can Librava make Kindle eBooks?

Its public pages list PDF and PNG exports, and its cover maker mentions eBook front covers, but we found no EPUB or Kindle file export (checked September 28, 2026). kdpbook.io exports a Kindle EPUB, reflowable or fixed layout, for the book types that suit Kindle; coloring, puzzle, activity and journal books are print only because KDP lists them as unsuited to Kindle.

Sources · read on September 28, 2026

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