Quillstone
Quillstone is a writing and publishing app for journalists and nonfiction authors, combining research, drafting, fact-checking, audiobook creation, cover des…
What Quillstone is
Quillstone is a writing and publishing app for journalists and nonfiction authors, combining research, drafting, fact-checking, audiobook creation, cover design, and export preparation. It gathers PDFs, documents, notes, and offline references to help form an outline. Private AI writing tools can rewrite, expand, tighten, proofread, or continue prose using a sample of the author’s work. Its fact checker adds inline citations, marks passages needing citations, and creates a verification report. Publishing outputs include EPUB, PDF, M4B, covers, metadata, and checklists. Local chaptered audiobook creation and layered cover design are supported, with cloud narration and image generation as optional services. The Mac app is offline by default, with no analytics or telemetry; selected text is sent to a chosen cloud provider only when enabled. Manuscripts, outlines, characters, covers, images, narration, exports, and encrypted API keys stay on the Mac. Quillstone requires an Apple Silicon Mac with M1 or later and macOS 15 or newer. Free costs nothing, while Pro costs $89, paid once.
Good
- Combines research, writing, fact-checking, and publishing
- Creates EPUB, PDF, and M4B outputs
- Supports local audiobooks and layered covers
- Offline by default without analytics or telemetry
- Offers a forever-free plan
Watch out
- Requires Apple Silicon Mac and macOS 15+
- Pro costs $89, paid once
- Cloud narration and image generation are optional services
- Available platforms listed are iOS and macOS
Who it suits
Quillstone suits journalists and nonfiction writers working on reporting, biography, history, manuals, textbooks, essays, or research-led books. It is for users with an Apple Silicon Mac running macOS 15 or newer.
Verdict
Quillstone brings research, editing, verification, design, audio, and publishing outputs into one workflow for nonfiction projects. Its Mac system requirements and one-time Pro license are the main practical constraints.
Plans and prices
From Quillstone's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Quillstone Free | Free | All nine writing and editing tools · private AI writing and editing · fact checker · research and offline retrieval · audiobook creation and voice cloning · cover design · EPUB/PDF export · forever |
| Quillstone Pro | $89, paid once | Everything in Free · bring-your-own-key cloud editing · cloud narration and image generation · publish-ready export bundle · no markup on provider costs · one-time license |
The facts
Each one read from Quillstone's own pages, with the date it was checked.
What it does
- Audiobooks and covers
- The app supports local chaptered audiobook creation and layered cover design, with optional cloud narration and image generation.checked 8 Oct 2026
- Cloud providers
- The privacy policy names OpenAI and Anthropic for cloud language models and ElevenLabs for optional narration.checked 8 Oct 2026
- Fact checking
- A built-in fact checker provides inline citations, needs-citation markers, and a verification report.checked 8 Oct 2026
- Intended users
- Quillstone is designed for serious nonfiction such as reporting, biography, narrative history, manuals, textbooks, essays, and research-led books.checked 8 Oct 2026
- Local data
- The privacy policy says manuscripts, outlines, characters, covers, generated images, narration audio, and exports are stored on the Mac, and entered API keys are encrypted there.checked 8 Oct 2026
- Other external services
- The privacy policy identifies Brave for web search, OpenAI for online fact-checking, Hugging Face and CivitAI for model downloads, Sparkle for updates, and Lemon Squeezy for license validation.checked 8 Oct 2026
- Privacy
- The Mac app is offline by default, has no analytics or telemetry, and sends selected text directly to a chosen cloud provider only when the user enables it.checked 8 Oct 2026
- Publishing outputs
- Quillstone can prepare EPUB, PDF, M4B, covers, metadata, and publishing checklists.checked 8 Oct 2026
- Purpose
- Quillstone combines research, drafting, fact-checking, audiobook creation, cover design, and book publishing exports for journalists and nonfiction authors.checked 8 Oct 2026
- Research workflow
- The app can gather PDFs, documents, notes, and offline reference material and help shape them into an outline.checked 8 Oct 2026
- Support
- Quillstone offers email support and says a real person usually responds within two business days.checked 8 Oct 2026
- System requirements
- Quillstone requires an Apple Silicon Mac (M1 or later) running macOS 15 or newer.checked 8 Oct 2026
- Writing tools
- Its private AI writing tools can rewrite, expand, tighten, proofread, or continue prose anchored to a sample of the writer’s work.checked 8 Oct 2026
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