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BookFoundry vs Vox9

BookFoundry

bookfoundry.ai

Vox9

vox9.io

Side by side

FigureBookFoundryVox9
Price from—Free
Free plan—Yes
Free trialYes—
Open source——
WebYesYes
WindowsYes—
macOSYes—
iOSYesYes
AndroidYesYes
APIYes—
Plans published45
Spec score · AI audiobook generators9.0 (#2)7.7 (#12)
IntegrationsThe pricing page lists Amazon KDP, Apple Books, Google Play Books, IngramSpark, Kobo, Draft2Digital, Barnes & Noble Press, Smashwords, Scribd, Wattpad, Audible and Libby as publishing destinations or references.The maker says Vox9 uses ElevenLabs for AI narration, Whisper for captions, Stripe for payments, and PayPal Payouts for author payments.
PrivacyThe privacy policy says user content may be reviewed by automated systems or authorised personnel for quality assurance, error detection, support, and misuse prevention.Vox9 says it does not sell personal information and lists Supabase, ElevenLabs, Stripe, AWS S3, Resend, and Google Analytics as service providers.
SupportThe maker says its human support team is available 24/7.Vox9 lists [email protected] for authors, advertisers, press, and general contact.
What it doesBookFoundry turns an idea or imported manuscript into a structured book with publishing-ready files.Vox9 is an audiobook platform where independent authors publish narrated episodes and listeners stream serialized fiction for free.

Plans

BookFoundry

  • Starter$14.99, paid once
  • Smith Triple$29.99, paid once
  • Freedom$99.99, paid once
  • Freedom Best Value$99.99, paid once

BookFoundry pricing →

Vox9

  • Free author accountFree
  • Free listener accessFree
  • Starter top-up pack$3, paid once
  • Standard top-up pack$12, paid once
  • Large top-up pack$22, paid once

Vox9 pricing →

In their own words

BookFoundry

BookFoundry turns an idea or existing content into a book with DOCX, EPUB, and PDF exports. Its listed book types include nonfiction, novels, short story collections, children's stories, memoir and family history, screenplays, and illustrated picture books. The FAQ says books can be written in 18 languages across 49 regional variants. After generation, an editor supports text changes and chapter revisions, with re-exporting at no extra cost. Users can import DOCX, EPUB, TXT, Markdown, or PDF manuscripts, subject to feature availability.

BookFoundry prepares store listing text, keywords, and categories, but does not upload books to stores. Listed outputs include EPUB builds for Kindle, Apple Books, Google Play, Kobo, and Nook, plus DOCX, print-ready PDF, and a high-resolution cover for prose books. The paid one-time bundles are Starter at $14.99, paid once for one credit, Smith Triple at $29.99, paid once for three credits, and Freedom at $99.99, paid once for sixteen credits; credits do not expire. The privacy policy says submitted text may go to Google Gemini, OpenAI, and Anthropic for generation or analysis, and says those providers do not use it to train public models. BookFoundry says human support is available 24/7.

Visit bookfoundry.ai

Vox9

Vox9 is an audiobook platform for serialized fiction, where listeners can stream episodes for free and independent authors can publish them. Its genres include science fiction, fantasy, HFY and horror. Authors may narrate with more than 100 AI voices or upload human narration; episodes can pair audio with synchronized scene images and captions, and existing YouTube videos can be imported as episodes. Listener access is free, and no account is needed to begin listening. A free author account includes 100,000 narration characters per month, described as roughly 1.5 hours of audio, with no credit card required. Paid plans start at $7.99/mo; one-time credit packs cost $3.00, $12.00 or $22.00, and purchased credits do not expire. Authors keep 50% of subscription payments and 80% of tips, with PayPal payouts once the balance reaches $9. Vox9 is available on Android, iOS and the web. The maker says authors retain ownership of uploaded text and MP3 audio, can delete their content, and their materials are not used to train AI models.

Visit vox9.io