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Publishing · head to head

Kotobee vs Pressbooks

Kotobee logo

Kotobee

Publishing

Interactive EPUB authoring that also exports native mobile apps and hosted libraries

From
Free
Rated
-
Full reviewWebsite
Pressbooks logo

Pressbooks

Publishing

Open source book production built on WordPress, and the default tool for open textbooks

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Kotobee interactive EPUB 3 features degrade or disappear in mainstream retail readers, Kindle in particular, so a book built around widgets and quizzes cannot simply be resold through ordinary retail channels later.; Pressbooks self-hosting is free in licence terms only; it requires WordPress multisite administration, upgrades and backups, which is a real staff cost most institutions underestimate.
  • They diverge on capability: Kotobee covers Interactive EPUB 3, Pressbooks covers Single source, three outputs.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Kotobee and Pressbooks actually diverge.

Attributes where Kotobee and Pressbooks differ
AttributeKotobeePressbooks
Pricing modelPer licence per yearOpen source, no licence fee
PlatformsWindows, macOS, Web, iOS, AndroidWeb, Self-hosted

Identical on both: starting price (Free), free tier (Yes), 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 Kotobee

  • Interactive EPUB 3
  • Quizzes and question banks
  • Native app export
  • Kotobee Cloud
  • DRM and access control
  • Kotobee Reader

Only in Pressbooks

  • Single source, three outputs
  • Cloning and adaptation
  • H5P interactive content
  • LMS integration
  • Open source under the GPL
  • Accessibility tooling

What people use each for

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

Kotobee

  • An education publisher whose distribution channel is a branded app installed by schools rather than a retail ebook storenot Pressbooks
  • A training department delivering interactive course material with embedded assessment to a known set of employeesnot Pressbooks
  • A publisher in a market where regional retail ebook channels are weak and direct institutional sales dominatenot Pressbooks
  • An organisation that needs access control and device limits on material it cannot distribute openlynot Pressbooks

Pressbooks

  • A university library replacing a commercial textbook by adapting an existing open textbook rather than commissioning a new onenot Kotobee
  • A course team that wants readings delivered inside Canvas or Moodle with embedded exercises rather than as a static PDFnot Kotobee
  • A research institute publishing reports that must exist as a web page, an EPUB and a printable document without maintaining three filesnot Kotobee
  • A consortium standardising open textbook production across several institutions with a shared catalogue of adaptable titlesnot Kotobee

Where each one falls short

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

Kotobee

  • Interactive EPUB 3 features degrade or disappear in mainstream retail readers, Kindle in particular, so a book built around widgets and quizzes cannot simply be resold through ordinary retail channels later.
  • Exporting a native app does not remove the app store obligations: you need Apple and Google developer accounts, you handle review submissions, and you own every rejection and update cycle.
  • There is no print workflow at all, so a title that also needs a paperback edition requires a separate layout tool and a duplicated production process.
  • It is a small vendor with a limited partner and integration ecosystem, which is a genuine concern for an institution embedding it in a multi-year curriculum programme.
  • Cloud hosting, DRM and user management are priced separately from the authoring licence, so the recurring cost of delivery, rather than the software purchase, is what the budget has to carry.

Pressbooks

  • Self-hosting is free in licence terms only; it requires WordPress multisite administration, upgrades and backups, which is a real staff cost most institutions underestimate.
  • Professional print PDF output depends on a commercial rendering engine that is licensed separately, so the genuinely free self-hosted route produces web and EPUB output but not press-quality print.
  • Design control is limited to the supplied themes unless someone writes custom CSS, so books tend to look recognisably like Pressbooks books.
  • There is no distribution, no ISBN service and no retail channel, so it produces files and web pages but plays no part in selling anything.
  • The editing experience inherits WordPress conventions, and authors working on long or heavily structured manuscripts find it slower than a dedicated writing application.

Pricing, plan by plan

Kotobee

Free
  • Kotobee Author$undefined/year
    • A free tier with limited export options
    • Paid licence tiers unlock app export and advanced widgets
    • Kotobee Cloud hosting and DRM billed separately

Pressbooks

Free
  • PressbooksFree
    • GPL licensed, self-hostable with no software fee
    • WordPress multisite administration is your responsibility
    • Print PDF export depends on a separately licensed rendering engine

Which should you pick?

Choose Kotobee if

  • You need interactive epub 3.
  • You want to start without paying.
  • You work on Windows, macOS, Web, iOS, Android.
  • You also want quizzes and question banks.
Kotobee review

Choose Pressbooks if

  • You need single source, three outputs.
  • You want to start without paying.
  • You work on Web, Self-hosted.
  • You also want cloning and adaptation.
Pressbooks review

Questions people ask

Is Kotobee or Pressbooks better?
Neither clearly leads. Kotobee starts at Free and Pressbooks at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kotobee or Pressbooks?
Kotobee starts at Free and Pressbooks at Free.
Does Kotobee or Pressbooks run on more platforms?
Kotobee runs on Windows, macOS, Web, iOS, Android. Pressbooks runs on Web, Self-hosted.
Can I use Kotobee for free?
Both have a free tier, so you can try either at no cost before committing.
What is Kotobee best used for?
Kotobee is most often used for an education publisher whose distribution channel is a branded app installed by schools rather than a retail ebook store, a training department delivering interactive course material with embedded assessment to a known set of employees, a publisher in a market where regional retail ebook channels are weak and direct institutional sales dominate, an organisation that needs access control and device limits on material it cannot distribute openly. Of those, an education publisher whose distribution channel is a branded app installed by schools rather than a retail ebook store and a training department delivering interactive course material with embedded assessment to a known set of employees are not what Pressbooks is typically brought in for.
What can Kotobee do that Pressbooks cannot?
Kotobee covers Interactive EPUB 3, Quizzes and question banks, Native app export, Kotobee Cloud. Pressbooks covers Single source, three outputs, Cloning and adaptation, H5P interactive content, LMS integration.

Answered from the vendors’ own pages

Kotobee: Can I sell a Kotobee book on Amazon?

You can sell a stripped-down EPUB, but the interactive content that justified the tool will not render. Treat retail as a separate, simpler edition.

Pressbooks: Is Pressbooks really free?

The software is GPL licensed and free to self-host. The hosted service is priced, and professional print PDF output requires a commercially licensed renderer, so budget accordingly.

Kotobee: Does Kotobee publish the app to the stores for me?

No. It generates the application; you supply the developer accounts and go through Apple and Google review yourself, including every subsequent update.

Pressbooks: Can I sell a book made in Pressbooks?

You can sell the EPUB or the printed book through any distributor, but Pressbooks itself provides no ISBN, no storefront and no distribution.

Kotobee: Is it suitable for a trade fiction publisher?

No. It is built for education, training and reference material where interactivity and controlled access are the point.

Pressbooks: Why do universities use it for open textbooks?

Because an openly licensed book can be cloned into another institution network and adapted for a different course, which turns a finished textbook into a starting point rather than a fixed artefact.

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