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Publishing · head to head

BookBaby vs Kindle Direct Publishing

BookBaby logo

BookBaby

Publishing

Pay-per-book self-publishing service for ebook conversion, print on demand and distribution

From
On request
Rated
-
Full reviewWebsite
Kindle Direct Publishing logo

Kindle Direct Publishing

Publishing

Amazon self-publishing platform that is free to use, earning Amazon a royalty cut instead of a fee, with a hard price band and per-megabyte delivery cost governing the 70% rate

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Kindle Direct Publishing has a free tier, so it costs nothing to try first.
  • Each has a real cost: BookBaby every stage beyond the base package, ISBN registration, expanded distribution, extra proof revisions and editing, is billed separately, so the advertised entry price is rarely the final cost.; Kindle Direct Publishing the 70% royalty band has hard edges: pricing even one cent outside $2.99-$12.99 drops the royalty to 35%, which is a cliff, not a gradual scale, and easy to trigger by accident when adjusting price for a promotion.
  • They diverge on capability: BookBaby covers Ebook conversion, Kindle Direct Publishing covers Free publishing.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which BookBaby and Kindle Direct Publishing actually diverge.

Attributes where BookBaby and Kindle Direct Publishing differ
AttributeBookBabyKindle Direct Publishing
Starting priceOn requestFree
Pricing modelOne-time purchase per projectFree to publish; Amazon earns a royalty share rather than a fee
Free tierNoYes

Identical on both: platforms (Web), user rating (Not yet rated), category (Publishing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in BookBaby

  • Ebook conversion
  • Print on demand
  • ISBN assignment
  • BookBaby Bookshop
  • Editing and cover design add-ons
  • Distribution to major retailers

Only in Kindle Direct Publishing

  • Free publishing
  • 70%/35% royalty tiers
  • Print-on-demand
  • KDP Select
  • Delivery fee deduction
  • Pre-order and release tools

What people use each for

The jobs each tool is most often brought in to do.

BookBaby

  • A first-time author who wants a single vendor to handle conversion, printing and distribution without learning the formats themselvesnot Kindle Direct Publishing
  • An author who wants a direct storefront (BookBaby Bookshop) alongside Amazon and Apple Books listingsnot Kindle Direct Publishing
  • A non-fiction author producing a small print run for events or clients rather than ongoing retail salesnot Kindle Direct Publishing
  • An author who has a finished manuscript and wants ISBNs assigned and registered under a known publisher of recordnot Kindle Direct Publishing

Kindle Direct Publishing

  • A self-published author wanting free, no-fee distribution to the largest single ebook and print-on-demand marketnot BookBaby
  • An author pricing a book between $2.99 and $12.99 to qualify for the 70% royalty tier rather than 35%not BookBaby
  • A publisher considering KDP Select exclusivity to earn Kindle Unlimited page-read royalties, trading away distribution on other retailers for the enrollment periodnot BookBaby
  • An author with a large, image-heavy ebook file who needs to understand the per-megabyte delivery fee before setting a pricenot BookBaby

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

BookBaby

  • Every stage beyond the base package, ISBN registration, expanded distribution, extra proof revisions and editing, is billed separately, so the advertised entry price is rarely the final cost.
  • Unlike Draft2Digital or Kindle Direct Publishing, there is no free tier; authors pay upfront for services regardless of whether the book ever sells a copy.
  • Revision rounds after the first proof are charged per round, which penalises authors who want to iterate on formatting.
  • Editing is priced per word rather than as a flat fee, so a full manuscript edit can cost more than the entire publishing package.
  • It packages services that KDP, Draft2Digital and IngramSpark offer for free or on a royalty-share basis, so cost-conscious authors comfortable with self-formatting pay for convenience they do not need.

Kindle Direct Publishing

  • The 70% royalty band has hard edges: pricing even one cent outside $2.99-$12.99 drops the royalty to 35%, which is a cliff, not a gradual scale, and easy to trigger by accident when adjusting price for a promotion.
  • The delivery fee, roughly $0.15 per megabyte, is deducted on every sale under the 70% tier, so image-heavy or long ebooks lose meaningfully more revenue per sale than a plain-text book at the same list price.
  • KDP Select exclusivity, while optional, is the only route to Kindle Unlimited page-read royalties, so authors face a real trade-off between Amazon-only reach with page-read income and wider distribution without it.
  • Public domain or primarily public-domain content is capped at the 35% royalty regardless of price, so that category of publisher cannot access the higher rate at all.
  • As a single-retailer platform, an author relying solely on KDP is concentrated in one sales channel controlled entirely by Amazon policy, which has changed royalty terms before (the July 2026 price band expansion is itself an example) and can do so again.

Pricing, plan by plan

BookBaby

On request
  • Ebook Publishing$299/one-time
    • Ebook conversion and formatting
    • Distribution to major ebook retailers
    • 100 percent royalties from most retailers
  • Print on Demand$399/one-time
    • Paperback print on demand setup
    • No inventory purchase required
    • Amazon and BookBaby Bookshop listing
  • Print plus Ebook Bundle$2190/one-time
    • Basic cover design
    • Ebook conversion and print on demand
    • A run of printed copies included

Kindle Direct Publishing

Free
  • 70% royalty tierFree
    • Applies to ebooks priced $2.99-$12.99 (expanded from $9.99 ceiling in July 2026)
    • In-copyright works only
    • Delivery fee of roughly $0.15/MB deducted per sale
  • 35% royalty tierFree
    • Applies below $2.99, above $12.99, or for public domain content
    • No delivery fee deducted
    • Applies automatically outside eligible territories for the 70% tier

Which should you pick?

Choose BookBaby if

  • You need ebook conversion.
  • You also want print on demand.
BookBaby review

Choose Kindle Direct Publishing if

  • You need free publishing.
  • You want to start without paying.
  • You also want 70%/35% royalty tiers.
Kindle Direct Publishing review

Questions people ask

Is BookBaby or Kindle Direct Publishing better?
Neither clearly leads. BookBaby starts at On request and Kindle Direct Publishing at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BookBaby or Kindle Direct Publishing?
Kindle Direct Publishing has a free tier; the other does not. Paid plans start at On request for BookBaby and Free for Kindle Direct Publishing.
Does BookBaby or Kindle Direct Publishing run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Kindle Direct Publishing for free?
Yes. Kindle Direct Publishing has a free tier, so you can try it without paying. BookBaby starts at On request.
What is BookBaby best used for?
BookBaby is most often used for a first-time author who wants a single vendor to handle conversion, printing and distribution without learning the formats themselves, an author who wants a direct storefront (bookbaby bookshop) alongside amazon and apple books listings, a non-fiction author producing a small print run for events or clients rather than ongoing retail sales, an author who has a finished manuscript and wants isbns assigned and registered under a known publisher of record. Of those, a first-time author who wants a single vendor to handle conversion, printing and distribution without learning the formats themselves and an author who wants a direct storefront (bookbaby bookshop) alongside amazon and apple books listings are not what Kindle Direct Publishing is typically brought in for.
What can BookBaby do that Kindle Direct Publishing cannot?
BookBaby covers Ebook conversion, Print on demand, ISBN assignment, BookBaby Bookshop. Kindle Direct Publishing covers Free publishing, 70%/35% royalty tiers, Print-on-demand, KDP Select.

Answered from the vendors’ own pages

BookBaby: Does BookBaby take a cut of royalties?

No for most retailers; authors keep 100 percent of the retailer royalty. BookBaby earns money from the upfront service fees instead.

Kindle Direct Publishing: Does KDP cost anything to use?

No signup or listing fee. Amazon earns revenue through the royalty share (65% or 30% of the list price after territory and delivery-fee adjustments) rather than a subscription or fee.

BookBaby: Can I publish only an ebook without print?

Yes, ebook-only packages start at 299 US dollars and do not require the print on demand package.

Kindle Direct Publishing: What is the current 70% royalty price band?

As of July 2026, $2.99 to $12.99, expanded from the previous $2.99 to $9.99 ceiling that had been unchanged since 2007.

BookBaby: Is a BookBaby ISBN owned by me or by BookBaby?

ISBNs are registered with BookBaby listed as the publisher of record unless you supply your own, which affects how the book is catalogued.

Kindle Direct Publishing: What is the delivery fee?

Roughly $0.15 per megabyte of file size, deducted per sale only on the 70% royalty tier, calculated from the delivered file size.

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