QUILLFIRE

Legal

Privacy Policy

Last updated: 13 September 2026

Quillfire is a writing studio, not an advertising business. We collect only what is needed to run your account and do the work you ask for. We don't sell data, show ads, or use analytics or tracking tools.

1. Who we are

Quillfire (“we”, “us”) runs the service at quillfire.ink and controls the personal data described here. For any privacy question or request, email privacy@quillfire.ink.

2. What we collect

  • Account data — your email address, an optional display name, and your password stored as a one-way bcrypt hash (we never see the password itself). We also record when your account was created and approved.
  • Your creative work — projects, manuscripts, outlines, characters, style guides and the writing samples you give them, research runs, and generated covers, portraits, audio, translations and exports.
  • Usage records — for each AI operation: the provider, model, operation type, token count, estimated cost and time. These records never contain your text. We use them to run the service and control costs.
  • Security data — your IP address is used briefly to rate-limit sign-in, sign-up and password-reset attempts. It is held in memory for a few minutes at most and is never added to your account. Password-reset links are stored only as a hash and expire.

We don't collect payment details, your location, device fingerprints, contacts, or browsing activity. There are no analytics, advertising pixels, social-media widgets or third-party embeds. Fonts and images are served from our own domain, so loading a page doesn't notify anyone else.

3. Why we use it (legal bases)

  • To provide the service you signed up for (contract): creating your account, storing your work, and running the generation, editing, narration and export tools you ask for.
  • To keep the service secure and working (legitimate interests): rate limiting, preventing abuse, approving new accounts, monitoring costs, and fixing problems.
  • To send essential account emails (contract): approval notices and password resets. We don't send marketing email.
  • To meet legal obligations, where they apply.

4. Who processes your data

Some features rely on other companies. They act as our processors, receive only what the task you ran needs, and may use it only to provide their service to us:

Third-party processors
AnthropicPurpose: Text generation (outlines, chapters, editing, research analysis)What they receive: The project content needed for the operation you run
OpenAIPurpose: Cover and portrait images; editorial reviewWhat they receive: Image briefs and the chapter text under review
xAI (Grok)Purpose: Heat-level rewrites; editorial reviewWhat they receive: The passage being rewritten or reviewed
ElevenLabsPurpose: Premium audiobook narration (only if you choose a premium voice)What they receive: Chapter text being narrated
FirecrawlPurpose: Live market-research web searchesWhat they receive: Genre and trope search terms — never your manuscripts
SerpApiPurpose: Weekly Kindle store market data and review summariesWhat they receive: Genre and trope search terms only — no account or manuscript data
Open Library / Amazon search suggestionsPurpose: Checking comparable titles exist; what readers search forWhat they receive: Book titles and trope phrases only
ResendPurpose: Transactional email (approval, password reset)What they receive: Your email address and the message
RailwayPurpose: Hosting, database, and file storageWhat they receive: All account data and content, stored on our behalf

We use the AI providers through their commercial APIs and have not opted in to letting them train models on your content. The standard free narration voices run on our own servers, so that text never leaves Quillfire.

Some of these providers are based in the United States, so your data may be processed outside your country. Where the law requires it, these transfers rely on the providers' standard contractual safeguards.

5. Administrator access

The Quillfire administrator can see account email addresses to approve sign-ups. To fix a problem, they can also view the app as you see it. This is used only for support and security. Every use is logged and is never used to read or copy your work for any other reason.

6. How long we keep it

  • Account data and creative work: for as long as your account exists.
  • Deleting a project removes its content and files straight away.
  • Deleting your account (Settings → Delete account) permanently removes your account, projects, and every file you created. Usage records are kept for cost reporting, with any link to you removed.
  • Rate-limit counters: minutes. Password-reset links: until they expire or are used.
  • Hosting backups or server logs may keep leftover copies for a limited time before they are overwritten.

7. Your rights

Depending on where you live (for example under the UK/EU GDPR or California's CCPA), you have the right to access, correct, delete, or receive a portable copy of your personal data. You can also object to or restrict certain processing.

Many of these you can do yourself: export your books from each project's Export page, and delete your account in Settings. For anything else, email privacy@quillfire.ink. We'll reply within one month. You can also complain to your local data-protection authority.

We don't sell or “share” personal information for targeted advertising.

8. Cookies

We only use the cookies needed to keep you signed in and to protect the sign-in form. See the Cookie Policy for the full list.

9. Security

All traffic is encrypted with HTTPS. Passwords are hashed with bcrypt. Every request for a project or file checks that it belongs to your account. Expensive and sensitive actions are rate-limited. No system is perfectly secure, so please use a strong password you don't use anywhere else.

10. Age

Quillfire is for adults only (18+) because it supports mature fiction. We don't knowingly collect data from anyone under 18. If we find an account belongs to a minor, we delete it.

11. Changes

If this policy changes, we'll update the date at the top. If a change materially affects how your data is used, we'll tell account holders by email before it takes effect.