kitio.aiGrammarly vs Ghostwriter
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Grammarly starts at $30/mo and Ghostwriter starts at $50 one-time. 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
- Writing in Word
- Styles and tones
- Quick-action prompts
- 50 personas
- Translation
- OpenAI, Gemini and Grok models
| Feature | Grammarly | Ghostwriter |
|---|---|---|
| Best for | Grammar, tone and rewrite suggestions in almost every app you type in | AI writing add-ins for Microsoft Word and Office with your own API key |
| Category | Writing | Writing |
| Pricing model | Freemium | Paid |
| Starting price | $30/mo | $50 one-time |
| Free plan | Yes | No |
| Made by | Superhuman Platform Inc. | Ghostwriter 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 Ghostwriter starts at $50 one-time. 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
2 plans
Word Basic
$50 one-time
- Single-user key
- Styles, tones and length controls
Word PRO
$100 one-time
- Single-user key
- Quick-action prompts
- 50 agents and personas
- Translation
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
Ghostwriter
- One-time purchase, no subscription
- Works across Windows, Mac, web and iPad
- Choose your own model provider
- Requires your own paid API key
- Single-user product keys
- Key delivery can take about an hour
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 Ghostwriter if you want:
- One-time purchase, no subscription
- Works across Windows, Mac, web and iPad
- Choose your own model provider
Watch out: requires your own paid api key.
Grammarly vs Ghostwriter FAQ
What is the difference between Grammarly and Ghostwriter?
Grammarly: Grammar, tone and rewrite suggestions in almost every app you type in. Ghostwriter: AI writing add-ins for Microsoft Word and Office with your own API key. Both are writing tools.
Is Grammarly or Ghostwriter cheaper?
Grammarly starts at $30/mo and Ghostwriter starts at $50 one-time. Check both pricing pages for current plans.
Do Grammarly and Ghostwriter have free plans?
Grammarly: Yes. Ghostwriter: No.
Who makes Grammarly?
Grammarly is made by Superhuman Platform Inc., based in United States.
Who makes Ghostwriter?
Ghostwriter is made by Ghostwriter AI.
Which should I choose, Grammarly or Ghostwriter?
Choose Grammarly if you value works in nearly every app and website and free plan catches most basic errors. Choose Ghostwriter if you value one-time purchase, no subscription and works across windows, mac, web and ipad.