Quire Terms of Use

Effective November 10, 2026

The short version: Quire turns a manuscript you've written into print-ready files. Your books are yours, and you're responsible for having the right to publish what's in them. Keep your own copy of your manuscript, and check the files before you print. Happy Heart Plus is optional, and its AI drafts can be wrong.

Who we are and these terms

Quire is made by Happy Heart Software LLC, doing business as Happy Heart Software ("we", "us"). These terms cover Quire online, at quire.happyheartsoftware.com, and the desktop app you run on your own computer. They add to our company Terms of Use, which also apply, and win where the two differ. By using Quire, you agree to both. If you don't agree, please don't use Quire.

Your books are yours

Your manuscripts, chapters, images, covers and the PDF and EPUB files Quire makes from them belong to you. We don't claim any rights to them. Quire online keeps and processes them only to run Quire for you, as our privacy policy describes.

You're responsible for what you put in Quire: please only use writing, images and cover art you wrote, own or have permission to use, and nothing unlawful. The same goes for a Google Doc you import, and for the ISBN and publisher details you enter.

Check before you print

Quire makes a book's interior PDF and its EPUB. It doesn't make the printed cover. Printers and stores have their own requirements (such as PDF/X, gutter size or cover files), so check the files and your printer's or store's rules before you publish or order copies. We aren't responsible for printing costs or a store's decisions.

Keep your own copy

The desktop app keeps your books on your computer, in its books/ folder. We don't have a copy, so back up that folder if you want to keep it safe.
Quire online keeps your books for you, with a nightly backup kept for 14 days, and a removed book stays in the trash for 30 days before it's deleted for good. Even so, keep your own copy of your manuscript, and download your finished files.

Access to Quire online

Quire online is invite-only, and you sign in with your Happy Heart Software account. Administrators, and the manager of your account, can open your library to help you and manage access, and your access may have an end date set by the person who runs it. Please keep your account to yourself, and don't share your sign-in.

Phone mode

Phone mode lets a phone on the same Wi-Fi use the desktop app over plain HTTP. Use it only on Wi-Fi you trust, like your home network, and not on public Wi-Fi.

Happy Heart Plus

Happy Heart Plus is an optional paid add-on that drafts your back cover text with AI. Get Plus opens Plus's own pages, where checkout is handled by Polar, our payment provider, and the price is shown before you buy. The "Paid features and Happy Heart Plus" section of our Terms of Use covers buying it, renewals, cancelling and credits.

A draft is written by an AI model and can be wrong, miss the point or sound like something else. It's a starting point: read and edit it before you save it or put it on your book.
Nothing is sent until you click Draft with Plus, and then only what our privacy policy describes.

Using Quire fairly

Please don't misuse Quire or the services behind it: don't try to disrupt or overload them, get around sign-in, invitations or Plus's limits, or open libraries that aren't yours to open.

Children

Quire isn't directed to children under 13.

Changes

We may change Quire and these terms from time to time. When we change these terms, we'll post the new version here and update the date at the top. Continuing to use Quire means you accept the updated terms.

Contact us

Questions about these terms? Email contact+quire@happyheartsoftware.com.