Writing app comparison
The long-form writer's apps, side by side
Scrivener, Ulysses, Microsoft Word, Notion, ChatGPT + your editor — the five apps long-form writers actually weigh. This page lines them up next to Core on price, formatting, AI, and publishing workflow. Deep-dives, a use-case guide, and an FAQ follow.
Core vs the major writing tools, at a glance
Five major writing tools next to Core on the axes that matter for book-length work. Each row links through to a deeper dive.
| Axis | Core | Scrivener | Ulysses | Word | Notion | ChatGPT |
|---|---|---|---|---|---|---|
| Price | ¥1,200/mo | $59.99 one-time | $49.99/yr | $20/mo + M365 | $10/mo + AI | $20/mo + editor |
| Rich formatting | ✓ | ✓ | — | ✓ | — | — |
| Multi-chapter project | ✓ | ✓ | ✓ | — | ✓ | — |
| Focus mode | ✓ | ✓ | ✓ | ✓ | — | — |
| Publishing workflow | — | ✓ | — | ✓ | — | — |
| Freeform AI chat | ✓ | — | — | ✓ | ✓ | ✓ |
| AI reads your whole book | ✓ | — | — | — | ✓ | — |
| Verified AI research | ✓ | — | — | ✓ | — | — |
| In short | AI-native long-form studio | Long-form classic with deep compile | Elegant minimalist Markdown editor | Full-featured industry standard | All-in-one workspace | AI chatbot, BYO editor |
Prices are starting individual tiers. AI features on Notion ($8/mo), ChatGPT ($20/mo), and Word ($20/mo Copilot Pro) are separate add-ons. See each deep-dive for the full year-one cost breakdown.
Individual comparisons
Each comparison goes into pricing, formatting, AI, and publishing in more depth.
Scrivener
The long-form classic. Buy-once, feature-rich, no AI.
Ulysses
Modern Markdown writing app. No built-in AI, not built for book-length work.
Word
Word, with AI bolted on. Built for business writing, not book-length projects.
Notion
A cloud workspace with relational databases. Great for plots, not built for prose.
ChatGPT
A workflow of copying and pasting between a general chatbot and your editor.
Which writing app to pick (by use case)
You want a whole-manuscript AI critic
Core goes furthest here by design. ChatGPT's context limits make cross-chapter work fragile; Copilot is a sidebar inside one open document; Notion AI is workspace-wide but isn't tuned for long-form prose context.
You want plots, characters, and research in a relational database
Notion is unbeaten here. A common pattern is to draft prose elsewhere and keep planning in Notion. Core offers tree, corkboard, and sticky-note views inside a single local project — closer to Scrivener's model with AI and research added on.
You want to keep the editor you already use and bolt AI on
ChatGPT + your editor or Word + Copilot are the honest picks. The copy-paste cost remains, but you keep tools you know.
You prefer a one-time purchase
Scrivener ($59.99 one-time) is the only real option. You'll pair it with an external AI tool if you want AI.
Frequently asked questions
- Which writing app has an AI that has read the whole manuscript?
- Only Core. Every conversation starts with the entire project — manuscript, notes, research — already loaded. ChatGPT requires chapter-by-chapter pasting; Copilot is a sidebar inside one document; Notion AI searches pages but is not tuned for long-form prose.
- Can I move my manuscript from Scrivener or Word into Core?
- Yes. Core imports Scrivener projects (.scriv) and Word documents (.docx), preserving binder structure and text. Bring existing work in during the 14-day free trial and keep writing.
- Which option is cheapest in the first year?
- With AI included, Core Pro at ¥14,400/year is the lightest. ChatGPT Plus + an editor, Notion Plus + AI, and Microsoft 365 + Copilot Pro land at ¥30,000–¥50,000/year for an individual. Scrivener alone is cheaper — until you add AI.
- Does Core avoid AI fabrication in research?
- Yes, by design. Core's research calls national library and archive database APIs and returns real bibliographic records only. ChatGPT, Copilot, and Notion AI generate prose that can invent plausible-looking citations, leaving verification on you.
- Is Core available on Windows or iPad?
- Not yet. Core is macOS-native today (macOS 15 Sequoia or later). Windows and iPad are not on the current release. It is built for focused long-form work on a Mac.
14 days on your own manuscript — then decide
The Pro plan comes with a 14-day free trial. Import your Scrivener project or Word document and keep writing — no paste-ins required.