kitio.aiGrammarly vs Thundercontent
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Grammarly starts at $30/mo and Thundercontent 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 writer with 90+ copywriting tools
- AI chat assistant
- 250+ AI voices
- AI video editor
- AI book creation
- 140+ languages
| Feature | Grammarly | Thundercontent |
|---|---|---|
| Best for | Grammar, tone and rewrite suggestions in almost every app you type in | AI writer, chat, voice and video tools in one platform |
| Category | Writing | Writing |
| Pricing model | Freemium | Freemium |
| Starting price | $30/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Superhuman Platform Inc. | Thundercontent |
| 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 Thundercontent 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
Thundercontent
- Several content tools under one account
- Works in 140+ languages
- 5-day money-back guarantee
- Pricing is split by product and confusing
- Heavy use needs the unlimited tiers
- Little detail on the video editor
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 Thundercontent if you want:
- Several content tools under one account
- Works in 140+ languages
- 5-day money-back guarantee
Watch out: pricing is split by product and confusing.
Grammarly vs Thundercontent FAQ
What is the difference between Grammarly and Thundercontent?
Grammarly: Grammar, tone and rewrite suggestions in almost every app you type in. Thundercontent: AI writer, chat, voice and video tools in one platform. Both are writing tools.
Is Grammarly or Thundercontent cheaper?
Grammarly starts at $30/mo and Thundercontent starts at See pricing page. Check both pricing pages for current plans.
Do Grammarly and Thundercontent have free plans?
Grammarly: Yes. Thundercontent: Yes.
Who makes Grammarly?
Grammarly is made by Superhuman Platform Inc., based in United States.
Who makes Thundercontent?
Thundercontent is made by Thundercontent.
Which should I choose, Grammarly or Thundercontent?
Choose Grammarly if you value works in nearly every app and website and free plan catches most basic errors. Choose Thundercontent if you value several content tools under one account and works in 140+ languages.