Authr vs Campfire
Campfire is the deepest modular worldbuilding suite around: maps, magic systems, languages, species and more. Here is how Authr compares.
Choose Campfire if…
…worldbuilding detail like maps and conlangs is the heart of your process.
Choose Authr if…
…you want the world and the manuscript in one place, with agents that keep them consistent.
Authr vs Campfire at a glance
| Authr | Campfire | |
|---|---|---|
| What it is | Agent-first book-writing app: manuscript, story bible and a team of AI agents in one place | Modular worldbuilding and writing suite |
| Platform | Web, on any computer or phone browser | Web, desktop with offline, mobile |
| Price | Free; Pro $19/month ($190/year); Studio $49/month ($490/year) | $12/month (sale price), annual and lifetime options |
| Free plan | Yes, your first book with every writing tool | Yes, with caps (25k words, 10 characters…) |
| AI | Seven built-in agent roles plus custom ones; any external agent too | None |
| Your own AI key | No keys needed. On Pro, bring your Claude or ChatGPT | No |
| API | Yes, full REST API on Pro | No |
| MCP server | Yes: work from Claude and ChatGPT on Pro | No |
| Story bible | Codex with automatic mention tracking | Encyclopedia plus 17 other modules |
| Relationship map | Yes, relationship graph | Relationship webs and family trees |
| Timeline | Yes | Yes |
| Collaboration | 2 collaborators on Pro, 9 on Studio, unlimited beta readers | Unlimited collaborators |
| Export | Word and Markdown; EPUB and print PDF on Pro | PDF, EPUB, DOCX |
Campfire details checked 4 November 2026 from its own website where it would load. Prices change; check Campfire for the latest. Spot something out of date? Tell us at support@authr.shop.
Where Campfire is stronger
- Far more worldbuilding modules: maps, conlangs, magic systems, calendars, species, religions.
- Desktop app with offline mode, and mobile apps.
- Lifetime and pay-per-module options, and unlimited collaborators even on free.
Where Authr is different
- AI agents that work inside the manuscript: review, line edits, continuity checks, inline suggestions.
- A REST API, MCP server and webhooks.
- A free plan with no caps on words, characters or codex entries.
Questions
What's the main difference between Authr and Campfire?
Campfire is the deepest modular worldbuilding suite around: maps, magic systems, languages, species and more. Authr keeps the core of a story bible (codex, graph, timeline) next to the manuscript, and adds agents that write and check scenes against it.
Does Authr have maps?
Not as a dedicated module. You can keep map images in research notes, and the relationship graph and timeline cover structure and chronology.
Is Authr free?
Yes. The Free plan covers your first book with every writing tool and about 15 agent tasks a month. Pro is $19 a month and Studio $49.
Other comparisons
Try Authr next to Campfire.
Free, with every feature. Import your draft and see what the agents make of chapter one.