kitio.aiGrammarly vs Youbooks
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Grammarly starts at $30/mo and Youbooks 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
- Tone detection
- Full-sentence rewrites
- Plagiarism checker
- Authorship tracking
- Book drafts up to 300K words
- Source-grounded chapters
- Custom voice model
- Web context search
- Sample books
| Feature | Grammarly | Youbooks |
|---|---|---|
| Best for | Grammar, tone and rewrite suggestions in almost every app you type in | AI generator for non-fiction books up to 300K words |
| Category | Writing | Writing |
| Pricing model | Freemium | Paid |
| Starting price | $30/mo | See pricing page |
| Free plan | Yes | No |
| Made by | Superhuman Platform Inc. | Youbooks |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Grammarly starts at $30/mo and Youbooks 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
- Spelling and grammar checks
- Tone detection
- 100 AI prompts
Pro
$30/mo
- Per member
- Full-sentence rewrites
- Tone adjustments
- Plagiarism and AI detection
Enterprise
Contact sales
- BYOK encryption
- Custom roles and permissions
- Data loss prevention
- Dedicated support
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
Grammarly
- Works in nearly every app and website
- Free plan catches most basic errors
- Clear explanations for each suggestion
- Best features need the paid plan
- Can flatten a writer's personal style
- English only
Youbooks
- Grounds chapters in your own sources
- Can learn your writing voice
- Sample books to preview output
- Voice training needs 20K+ words of samples
- Non-fiction only
- Pricing not shown on the site
Which one should you choose?
Choose Grammarly if you want:
- Works in nearly every app and website
- Free plan catches most basic errors
- Clear explanations for each suggestion
Watch out: best features need the paid plan.
Choose Youbooks if you want:
- Grounds chapters in your own sources
- Can learn your writing voice
- Sample books to preview output
Watch out: voice training needs 20k+ words of samples.
Grammarly vs Youbooks FAQ
What is the difference between Grammarly and Youbooks?
Grammarly: Grammar, tone and rewrite suggestions in almost every app you type in. Youbooks: AI generator for non-fiction books up to 300K words. Both are writing tools.
Is Grammarly or Youbooks cheaper?
Grammarly starts at $30/mo and Youbooks starts at See pricing page. Check both pricing pages for current plans.
Do Grammarly and Youbooks have free plans?
Grammarly: Yes. Youbooks: No.
Who makes Grammarly?
Grammarly is made by Superhuman Platform Inc., based in United States.
Who makes Youbooks?
Youbooks is made by Youbooks.
Which should I choose, Grammarly or Youbooks?
Choose Grammarly if you value works in nearly every app and website and free plan catches most basic errors. Choose Youbooks if you value grounds chapters in your own sources and can learn your writing voice.