BetaShelf vs BetaReader.io vs BetaBooks: An Honest Comparison

Short answer: All three are good ways to share a manuscript with beta readers and collect feedback in one place. BetaReader.io is best if you need to find new readers, thanks to its Discovery listing, read swaps and mobile apps. BetaBooks is best for sorting and discussing large amounts of feedback. BetaShelf is best if you want private per-reader links with no reader accounts, a one-time price for a single book, and to go straight from feedback to Kindle and print files with KDP Export.

We make BetaShelf, so read this with that in mind. We have tried to be fair: every fact about BetaReader.io and BetaBooks below comes from their own websites, checked in October 2026, and we say so where we couldn't confirm something.

At a glance

BetaReader.io

BetaReader.io, from Sweden, has the largest community of the three. Its strength is reach: list your book in Discovery and readers across the platform can ask to read it, or suggest a read swap with another author. Its free plan is generous (inline comments, reactions and surveys are all free), Premium is the cheapest subscription here at $9.99 a month, and readers get native iOS and Android apps with offline reading and text-to-speech. Its reading reports go deep, including the average time readers spend on each chapter.

Things to know: manuscripts must be .docx files under 5MB without images, using a specific heading style for chapters. Its own site notes that listing your book gives it visibility, but readers and feedback aren't guaranteed.

Choose BetaReader.io if you don't have readers yet and want a big pool to find them in.

BetaBooks

BetaBooks has been around since 2017 and is focused on one job: managing beta readers. It shines once the feedback arrives. You can sort and filter notes by reader, chapter or keyword, mark each one To Do, Consider or Ignore, and reply to readers in the app. Pro adds tools for big reader lists: CSV import, a signup link and form, automatic reading reminders, and collaborator roles. Its Reader Directory, on paid plans, helps you find volunteer readers by genre.

Things to know: chapters are pasted in rather than uploaded, inline comments and questionnaires need a paid plan, and the free plan allows up to 3 readers. BetaBooks is run by a small team, and in 2026 it has been posting regular updates about fixes and improvements.

Choose BetaBooks if you run large beta rounds and want strong tools for working through the feedback.

BetaShelf

BetaShelf is built around keeping the book private and simple for readers. Every reader gets their own link, opens it in any browser without creating an account, and can't download the original file. You can turn any link off, or give it an end date. Inline comments, chapter ratings and suggested line edits come back to one dashboard, and you can apply line edits right in the book.

The difference is what happens after feedback. With a Book Pass ($29 once, no subscription) or Unlimited, KDP Export turns the revised book into a Kindle ebook (EPUB) and a print-ready paperback interior (PDF), so you don't need a separate formatting tool. BetaShelf also includes writing tools, book pages and review campaigns.

Things to know: reader progress, custom questions and read-aloud need a Book Pass or Unlimited. Readers read on the web; there's no separate reader app to install. BetaShelf's reader community is newer and smaller than BetaReader.io's.

Choose BetaShelf if you already have readers you want to invite, care about keeping the manuscript private, and want to go from feedback to publish-ready files in one place.

Which should you use?

• You need to find readers: BetaReader.io.
• You have lots of readers and lots of feedback to sort: BetaBooks.
• You want private links, no reader accounts, and Kindle-ready files at the end: BetaShelf.

Want to see for yourself? Try BetaShelf free with up to five beta readers. For more detail, see the best platform for managing beta readers or our BetaShelf vs BetaBooks page.