kitio.aiProWritingAid vs Duden Mentor
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. ProWritingAid starts at See pricing page and Duden Mentor starts at See pricing page. Check both pricing pages for current plans.
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
- German spelling checks
- Grammar and punctuation
- Style tips
- Synonym suggestions
- Word add-in
| Feature | ProWritingAid | Duden Mentor |
|---|---|---|
| Best for | Grammar checker and style editor built with fiction writers in mind | German spelling, grammar and style checker from the Duden dictionary |
| Category | Writing | Writing |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | Yes |
| Made by | Orpheus Technology | Cornelsen Verlag |
| Based in | United Kingdom | Germany |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
ProWritingAid starts at See pricing page and Duden Mentor starts at See pricing page. Check both pricing pages for current plans.
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
Duden Mentor
- Follows Duden rules exactly
- Free basic checks
- Works in Word and browsers
- German only
- Style features need Premium
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 Duden Mentor if you want:
- Follows Duden rules exactly
- Free basic checks
- Works in Word and browsers
Watch out: german only.
ProWritingAid vs Duden Mentor FAQ
What is the difference between ProWritingAid and Duden Mentor?
ProWritingAid: Grammar checker and style editor built with fiction writers in mind. Duden Mentor: German spelling, grammar and style checker from the Duden dictionary. Both are writing tools.
Is ProWritingAid or Duden Mentor cheaper?
ProWritingAid starts at See pricing page and Duden Mentor starts at See pricing page. Check both pricing pages for current plans.
Do ProWritingAid and Duden Mentor have free plans?
ProWritingAid: Yes. Duden Mentor: Yes.
Who makes ProWritingAid?
ProWritingAid is made by Orpheus Technology, based in United Kingdom.
Who makes Duden Mentor?
Duden Mentor is made by Cornelsen Verlag, based in Germany.
Which should I choose, ProWritingAid or Duden Mentor?
Choose ProWritingAid if you value deep style reports for long manuscripts and works with scrivener and word. Choose Duden Mentor if you value follows duden rules exactly and free basic checks.