Penveil

Finally write the book that's been stuck in your head.

Tell Penveil your idea — even a rough one — and get a complete blueprint for your book before you write a word. 14-day free trial, no credit card required.

The system

Penveil is a structured writing system for finishing books. Three layers of structure work together to keep your story consistent and your writing moving forward.

  • Blueprint: title, premise, full chapter-by-chapter outline, characters, and a writing direction — generated in a few minutes
  • Chapter contracts on the Plan Board: purpose, conflict, and what each chapter must reveal — defined before you write it
  • Story Bible: characters, places, and timeline tracked as you write — nothing re-explained between sessions

The daily writing

  • Streaming Co-Write: write a passage and Penveil continues it in your voice, live and inline
  • Inline selection edits: rewrite, expand, shorten, or describe any sentence in place — with a preview before it touches your draft
  • Chat with your book: ask your manuscript questions and get answers grounded in what you've written
  • Daily warmup: one tailored prompt pulled from exactly where you left off
  • Four writing modes — Free Write, Co-Write, Guided, and Voice dictation (with an interview mode for memoir) — plus read-aloud
  • Import your existing draft (.txt, .docx, or .pdf) and pick up where you left off

From draft to readers

When your draft is ready, Penveil typesets it into a real book — a print-ready PDF in 6×9 or 5×8 trim, or an EPUB for e-readers. Word (.docx) export is included too. Every book can open a public reader page where readers sample chapters and follow along by email — you publish chapters to your followers as you write them.

Before you share, run chapters past AI beta readers for reports on where they'd stop reading, and track the ledger of promises your story has made — setups, mysteries, Chekhov's guns — so none go unpaid.

Pricing

Basic — $5/month (or $48/year, $4/month billed annually): Book blueprint, guided and co-write modes, Story Bible, PDF and Word export. ~375,000-word monthly writing allowance.

Pro — $10/month (or $96/year, $8/month billed annually): Everything in Basic plus voice dictation, full editing suite, Tone Lock, and publishing tools. ~1.5 million-word monthly writing allowance.

Lifetime — $199 one-time: All Pro features, forever. Pay once, no monthly fees.

All plans include a 14-day free trial with no credit card required.

Genres Supported

Memoir · Autobiography · Novel · Self-Help · Picture Books · Children's Chapter Books · Business · Academic Writing · Songwriting · Screenwriting

Your writing stays yours

Your manuscripts are private by default and never used to train AI models. Export your work at any time as Word, PDF, or ePub. You own 100% of what you write.