kitio.aiProWritingAid vs AI Story Builders
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. AI Story Builders is completely free, while ProWritingAid is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Grammar and spelling checks
- Style and pacing reports
- Scrivener integration
- AI rephrasing
- Manuscript critique
- Character and location database
- Timeline tracking
- AI story continuation
- Guided rewrites
- Windows and web versions
| Feature | ProWritingAid | AI Story Builders |
|---|---|---|
| Best for | Grammar checker and style editor built with fiction writers in mind | Novel-writing app that keeps AI consistent with your characters and timelines |
| Category | Writing | Writing |
| Pricing model | Freemium | Free |
| Starting price | See pricing page | Free |
| Free plan | Yes | Yes, fully free |
| Made by | Orpheus Technology | AI Story Builders |
| Based in | United Kingdom | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
AI Story Builders is completely free, while ProWritingAid is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- Basic grammar and style checks
Premium
₹1,650/mo
- Everything in Free
- Story Canvas: 30 Idea Feedback runs
- Outline Crafter
Premium Pro
₹1,980/mo
- Everything in Premium
- 30 chapter critiques per day
- 15 creative nudges per day
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
ProWritingAid
- Deep style reports for long manuscripts
- Works with Scrivener and Word
- Lifetime licence option
- Interface can feel cluttered
- Free plan caps words per check
AI Story Builders
- Software is free
- Keeps long stories consistent
- Low running cost on your own key
- Needs an OpenAI API key
- Desktop app is Windows only
- Takes setup to fill the story database
Which one should you choose?
Choose ProWritingAid if you want:
- Deep style reports for long manuscripts
- Works with Scrivener and Word
- Lifetime licence option
Watch out: interface can feel cluttered.
Choose AI Story Builders if you want:
- Software is free
- Keeps long stories consistent
- Low running cost on your own key
Watch out: needs an openai api key.
ProWritingAid vs AI Story Builders FAQ
What is the difference between ProWritingAid and AI Story Builders?
ProWritingAid: Grammar checker and style editor built with fiction writers in mind. AI Story Builders: Novel-writing app that keeps AI consistent with your characters and timelines. Both are writing tools.
Is ProWritingAid or AI Story Builders cheaper?
AI Story Builders is completely free, while ProWritingAid is freemium.
Do ProWritingAid and AI Story Builders have free plans?
ProWritingAid: Yes. AI Story Builders: Yes, fully free.
Who makes ProWritingAid?
ProWritingAid is made by Orpheus Technology, based in United Kingdom.
Who makes AI Story Builders?
AI Story Builders is made by AI Story Builders.
Which should I choose, ProWritingAid or AI Story Builders?
Choose ProWritingAid if you value deep style reports for long manuscripts and works with scrivener and word. Choose AI Story Builders if you value software is free and keeps long stories consistent.