Inkwell vs WriterDuet
WriterDuet is a collaboration-first, cross-platform tool. Inkwell is a Mac-native editor with a built-in AI assistant for writers working on their own scripts.
WriterDuet's standout feature is real-time collaboration: multiple writers editing the same script at once, in the browser or a desktop app, across Mac, Windows, and mobile. If your work is fundamentally collaborative, that's a strong fit.
Inkwell is built for the solo writer. It's a native macOS app centered on Quill, an AI assistant that brainstorms, edits, and polishes alongside you — always as approve/reject suggestions, never as automatic generation. It works fully offline and reads/writes both Fountain and Final Draft (.fdx).
The choice comes down to your workflow: real-time co-writing across platforms, or a focused, AI-assisted, Mac-native writing experience that keeps you in control of every line.
Inkwell vs WriterDuet at a glance
| Inkwell | WriterDuet | |
|---|---|---|
| Price | Free to start. Pro is $10/month (or $100/year). | Free (3 projects); Plus $9.99/mo, Pro $11.99/mo, Premium $13.99/mo. |
| Built-in AI assistant | Yes — Quill, with an approve/reject diff for every suggestion. | Collaboration-focused; AI is not its central feature. |
| Platforms | Native macOS app. | Web browser, desktop (Mac/Windows), and mobile. |
| Real-time collaboration | Single-writer focused today. | Real-time multi-writer collaboration (its headline feature). |
| File formats | Fountain and Final Draft (.fdx) import and export. | Industry-standard formatting; Final Draft and Fountain supported. |
| Offline writing | Fully offline; internet only needed to ask Quill. | Offline desktop writing on paid plans. |
WriterDuet offers a free tier (3 projects) and paid plans — Plus ($9.99/mo, which adds unlimited projects, real-time collaboration, and offline desktop writing), Pro ($11.99/mo), and Premium ($13.99/mo). It runs in the browser with desktop and mobile apps. Facts current as of June 2026; check writerduet.com for the latest.
Choose WriterDuet if…
- You co-write in real time with collaborators.
- You need to write across the web, Windows, Mac, and mobile.
- Your team is already standardized on WriterDuet.
Choose Inkwell if…
- You want a built-in AI assistant that suggests but never auto-writes.
- You write solo and want a fast, native, offline-first Mac editor.
- You prefer one simple price over per-tier collaboration plans.
- You move scripts between Fountain and Final Draft (.fdx).
Try Inkwell free
The full editor, unlimited scripts, and Fountain / Final Draft import are free. Bring a script over from WriterDuet and see how Quill works.