Legal

Terms of Service

Last updated: May 2026

What BookOS is

BookOS (operated by Snow Labs) is the parent suite for 13 author tools — Typewriter, BookPolish, BookCovers, BookPrinter, AudiobookMaker, BookClip, AuthorPage, BookStand, PublisherKit, RawPages, AuthorKit, and more. These umbrella terms cover the BookOS account, billing, and cross-app behaviour. Each product also publishes its own terms covering product-specific obligations.

Single sign-on

One BookOS account works across every product in the suite via authorkit.app SSO. We share your authentication identity, profile, and billing across apps; we do not share your manuscript content or per-app data unless you explicitly invoke a cross-app action.

Subscription & credits

BookOS Pro is a unified subscription that includes credits across the suite. See pricing. Per-app one-off purchases are also available within each product.

Acceptable use

Don't use any BookOS product to violate copyright, distribute malware, harass others, or break laws. Suspension of one product can extend to the entire suite for severe violations.

Product-specific terms

For terms specific to a product, see that product's /terms page (e.g. https://bookpolish.app/terms, https://typewriter.digital/terms).

Limitation of liability

Capped at amounts paid in the preceding 12 months across the entire suite.

Questions?

Email hello@bookos.co.