All comparisons
Grammarly vs QuillBot vs Wordtune
Improving text you have already written, rather than generating it. These overlap heavily, so this is about which failure you care about.
GrammarlyWriting | QuillBotWriting | WordtuneWriting | |
|---|---|---|---|
| Tagline | AI writing assistant for error-free communication | AI paraphrasing and grammar tool | AI Writing Assistant & Sentence Rewriter |
| What it does | Grammarly is an AI writing assistant that checks grammar, spelling, tone, and clarity in written content. Free tier, then $12. | QuillBot is an AI writing assistant that helps rephrase and improve written content. AI paraphrasing and grammar tool. Free tier, then $9.95. | Wordtune is an AI-powered writing assistant that helps users rewrite, rephrase, and refine their text to improve clarity, tone, and impact. |
| Pricing | Freemium | Paid | Freemium |
| Pricing details | Free tier available. Premium: $12/month. Business: $15/member/month | Free tier available. Premium: $9.95/month | Free tier: 10 rewrites/day. Plus: $13.99/month. Unlimited: $25/month |
| Price range | $0 - $15/moBilled annually, no monthly price publishedChecked 2026-08-30 | $0 - $9.95/moChecked 2026-08-30 | $0 - $25/moChecked 2026-08-30 |
| Free option | Free tier | No free option | Free tier |
| Plans |
| Not available |
|
| Single sign-on | Available | Not available | Available |
| Category | Writing | Writing | Writing |
| Tags | writinggrammarproductivitycommunication | writingparaphrasinggrammaracademic | writingrewritingeditingproductivity |
| Website | Visit Grammarly | Visit QuillBot | Visit Wordtune |
GrammarlyWriting
- Tagline
- AI writing assistant for error-free communication
- What it does
- Grammarly is an AI writing assistant that checks grammar, spelling, tone, and clarity in written content. Free tier, then $12.
- Pricing
- Freemium
- Pricing details
- Free tier available. Premium: $12/month. Business: $15/member/month
- Price range
- $0 - $15/moBilled annually, no monthly price publishedChecked 2026-08-30
- Free option
- Free tier
- Plans
- Free$0/mo
- Pro$12/mo
- EnterpriseCustom
- Single sign-on
- Available
- Category
- Writing
- Tags
- writinggrammarproductivitycommunication
- Website
- Visit Grammarly
QuillBotWriting
- Tagline
- AI paraphrasing and grammar tool
- What it does
- QuillBot is an AI writing assistant that helps rephrase and improve written content. AI paraphrasing and grammar tool. Free tier, then $9.95.
- Pricing
- Paid
- Pricing details
- Free tier available. Premium: $9.95/month
- Price range
- $0 - $9.95/moChecked 2026-08-30
- Free option
- No free option
- Plans
- Not available
- Single sign-on
- Not available
- Category
- Writing
- Tags
- writingparaphrasinggrammaracademic
- Website
- Visit QuillBot
WordtuneWriting
- Tagline
- AI Writing Assistant & Sentence Rewriter
- What it does
- Wordtune is an AI-powered writing assistant that helps users rewrite, rephrase, and refine their text to improve clarity, tone, and impact.
- Pricing
- Freemium
- Pricing details
- Free tier: 10 rewrites/day. Plus: $13.99/month. Unlimited: $25/month
- Price range
- $0 - $25/moChecked 2026-08-30
- Free option
- Free tier
- Plans
- Basic$0/mo
- Advanced$13.99/mo
- Unlimited$19.99/mo
- Single sign-on
- Available
- Category
- Writing
- Tags
- writingrewritingeditingproductivity
- Website
- Visit Wordtune
Which should you pick?
Grammarly is the broadest and the one that catches actual errors most reliably, and it is everywhere you type. QuillBot is built around paraphrasing and is the strongest at genuinely restructuring a sentence rather than correcting it. Wordtune sits between the two and is good at offering alternative phrasings you would not have reached for, but check it is still being developed before you commit: it is still on sale while AI21 has reportedly moved on. If you want correctness pick Grammarly, if you want to say the same thing differently pick QuillBot.