kitio.aiGrammarly vs Simpler.ai
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Grammarly starts at $30/mo and Simpler.ai 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
- AI continue writing
- Command-based edits
- Insert text mid-document
- Grammarly spellchecking
- Dark mode
| Feature | Grammarly | Simpler.ai |
|---|---|---|
| Best for | Grammar, tone and rewrite suggestions in almost every app you type in | Pay-as-you-go AI writer with a one-button continue |
| Category | Writing | Writing |
| Pricing model | Freemium | Freemium |
| Starting price | $30/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Superhuman Platform Inc. | Simpler.ai |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Grammarly starts at $30/mo and Simpler.ai 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
Simpler.ai
- No monthly subscription
- Free starter credits for new accounts
- Clean editor with few buttons
- Credits run out as you use them
- Site content looks dated
- Little detail on the underlying model
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 Simpler.ai if you want:
- No monthly subscription
- Free starter credits for new accounts
- Clean editor with few buttons
Watch out: credits run out as you use them.
Grammarly vs Simpler.ai FAQ
What is the difference between Grammarly and Simpler.ai?
Grammarly: Grammar, tone and rewrite suggestions in almost every app you type in. Simpler.ai: Pay-as-you-go AI writer with a one-button continue. Both are writing tools.
Is Grammarly or Simpler.ai cheaper?
Grammarly starts at $30/mo and Simpler.ai starts at See pricing page. Check both pricing pages for current plans.
Do Grammarly and Simpler.ai have free plans?
Grammarly: Yes. Simpler.ai: Yes.
Who makes Grammarly?
Grammarly is made by Superhuman Platform Inc., based in United States.
Who makes Simpler.ai?
Simpler.ai is made by Simpler.ai.
Which should I choose, Grammarly or Simpler.ai?
Choose Grammarly if you value works in nearly every app and website and free plan catches most basic errors. Choose Simpler.ai if you value no monthly subscription and free starter credits for new accounts.