kitio.aiQuillBot vs Ludwig
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. QuillBot starts at $19.95/mo and Ludwig 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
- Paraphraser with multiple modes
- Grammar checker
- Summarizer
- AI detector
- Citation generator
- Sentence search
- Wildcard queries
- Compare phrases
- Source filters
- Desktop app
| Feature | QuillBot | Ludwig |
|---|---|---|
| Best for | Paraphraser with grammar checker, summarizer and citation tools | Sentence search engine that shows how real sources use a phrase |
| Category | Writing | Writing |
| Pricing model | Freemium | Freemium |
| Starting price | $19.95/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Learneo | Ludwig |
| Based in | United States | Italy |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
QuillBot starts at $19.95/mo and Ludwig 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
- 125-word paraphrases
- 2 paraphrasing modes
- Grammar checker
Premium
$19.95/mo
- Unlimited paraphrasing
- All modes
- Advanced grammar suggestions
Team
Contact sales
- Everything in Premium
- Multiple users, one purchase
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
QuillBot
- Many rewrite modes to choose from
- Generous free tier
- Several writing tools under one login
- Free plan limits word count per paraphrase
- Rewrites can change the meaning
- Heavy use raises academic integrity questions
Ludwig
- Shows real usage examples
- Good for non-native writers
- Wildcards fill in missing words
- Free use limited to a few daily queries
- English only
Which one should you choose?
Choose QuillBot if you want:
- Many rewrite modes to choose from
- Generous free tier
- Several writing tools under one login
Watch out: free plan limits word count per paraphrase.
Choose Ludwig if you want:
- Shows real usage examples
- Good for non-native writers
- Wildcards fill in missing words
Watch out: free use limited to a few daily queries.
QuillBot vs Ludwig FAQ
What is the difference between QuillBot and Ludwig?
QuillBot: Paraphraser with grammar checker, summarizer and citation tools. Ludwig: Sentence search engine that shows how real sources use a phrase. Both are writing tools.
Is QuillBot or Ludwig cheaper?
QuillBot starts at $19.95/mo and Ludwig starts at See pricing page. Check both pricing pages for current plans.
Do QuillBot and Ludwig have free plans?
QuillBot: Yes. Ludwig: Yes.
Who makes QuillBot?
QuillBot is made by Learneo, based in United States.
Who makes Ludwig?
Ludwig is made by Ludwig, based in Italy.
Which should I choose, QuillBot or Ludwig?
Choose QuillBot if you value many rewrite modes to choose from and generous free tier. Choose Ludwig if you value shows real usage examples and good for non-native writers.