kdp · compare · kdp builder
A KDP Builder alternative for puzzle books, at a fixed price a book
KDP Builder makes many kinds of books from credits and estimates a puzzle book at 100 to 150 of them. vøiddo makes puzzle and coloring books only, and a puzzle book always costs 500 credits: $5.00 in the small pack, $3.30 in the big one. You know the price before you press the button.
| vøiddo | KDP Builder | |
|---|---|---|
| Price of a puzzle book | 500 credits, always. $15 for 3 books ($5.00 each), $39 for 10 ($3.90), $99 for 30 ($3.30). | “~100–150” credits by their estimate. Packs: $8.99 for 100 credits (“≈ 1 puzzle book”) to $89.99 for 1,500 (“≈ 10–15 puzzle books”), so $6.00 to $9.00 a book. |
| Subscription | None. Credits are bought once and never expire. | Optional: $16 to $166 a month for 250 to 4,000 credits a month. Packs are the other way to pay. |
| What you get | Interior PDF, full wrap cover with the spine sized to your page count, a signed check of both files against KDP’s paperback specs, listing text with seven keyword ideas, six preview images. | An interior, a cover and listing text, made through their AI steps; “18+” book types |
| Cover | Typeset by our program from the book’s own puzzles, no pictures, so there is nothing to disclose as AI images | “AI generates a professional cover” |
| Puzzle checks | Each puzzle is checked by a second, independent program: one solution per sudoku, each word exactly once per word search, one route per maze | Not listed on their pricing page |
| If KDP rejects the files | Within 30 days, the book’s credits go back to your key | Not listed on their pricing page |
| Trying it | Sample pages and a 10-page sample PDF on the puzzle book page, no account; free spine calculator and file check | 75 one-time credits, no card |
KDP Builder figures and quotes from kdpbuilder.com/pricing, read on 23 October 2026. Their credits per book are their own estimate. Check their page for today’s numbers.
Which one fits
- vøiddo fits when you make puzzle books (sudoku, word search, mazes, large print) and want one known price a book, files checked against KDP’s specs, and a cover with no picture to disclose. We make coloring books too, priced by the design.
- KDP Builder fits when you also make journals, planners, children’s books, cookbooks or novels in the same place: we do not make those.
Questions
Why a fixed price a book?
Because a puzzle book is made by ordinary programs, not by paid model calls, so it costs us the same every time. You see 500 credits before you start, whatever the page count.
Will KDP accept the files?
Each book passes our check against KDP’s published paperback specs before you can download it: page size, page count, embedded fonts, margins and gutter for the page count, cover size and spine. If KDP still rejects the files within 30 days, the credits come back.
Do I answer “yes” to KDP’s AI question for a puzzle book?
The puzzles, the layout and the cover design are made by ordinary programs and the covers have no pictures. The shared wording of every book (the how-to page, the back cover text, the listing description) was drafted with an AI writing tool. The puzzle book page has the full answer; the choice is yours as the publisher.
Is vøiddo connected to KDP Builder?
No. KDP Builder is a trademark of its owner; this page compares public prices and features as they were on the date above.