Writing, editing & translation · 2 tools compared
Last verified:
Prices may changeFor daily English emails and documents
Grammarly ◐Free plan
Integrates into Gmail and Word to fix errors in real time as you type. Grammar and spelling checks are free.
When you want to rephrase your writing
QuillBot ◐Free plan
Rewrites sentences using modes like Formal or Shorten. Includes free summarizer and citation generator tools.
For writing research papers and assignments
Grammarly ◐Free plan
Plagiarism checking and tone adjustments are in paid plans. Many schools also provide institutional licenses.
| Item | Grammarly | QuillBot |
|---|---|---|
| Price | ◐Free plan | ◐Free plan |
| Free limits | Spelling and grammar checks, plus 100 AI prompts per month | Paraphrase up to 125 words, summarize up to 1,200 words, 3 AI images per day |
| Paid price | Pro $12/month (2,000 AI prompts per month) | Premium $8.33/month (billed annually) |
| Korean | ✕NoneEnglish only. UI is also in English | △PartialUI in English. Translation and summarization support Korean, but paraphrasing focuses on English |
| Login | Required | Optional |
| Platforms | Web · Windows · macOS · iOS · Android · Browser extension | Web · Browser extension · Windows · macOS · iOS · Android |
| Core Function | Real-time error correction as you write | Paraphrases completed sentences into different styles |
| Free Tier Scope | Basic grammar and spelling checks | 125 words per paraphrase, 2 modes |
| Extra Features | Tone adjustments, plagiarism checker (Paid) | Summarizer, translator, citation generator |
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Grammarly corrects errors in real time as you type across Gmail and Word. The free tier fixes basic grammar and spelling, while paid plans add tone adjustments and plagiarism checks. It only supports English. Check school or company license options before paying.
QuillBot specializes in paraphrasing finished sentences into different styles like Formal or Shorten. It includes handy tools like a summarizer and citation generator. The free tier is limited to 125 words and 2 modes. Check school AI policies before submitting paraphrased text.
These tools serve different stages of writing. Use Grammarly while drafting to catch real-time errors in daily work emails. Use QuillBot after writing to rephrase sentences for academic papers. Grammarly offers unlimited basic grammar checks for free, whereas QuillBot caps free paraphrasing by word count.
| Situation | Pick | Why |
|---|---|---|
| 💼 For daily English emails and documents | Grammarly | Integrates into Gmail and Word to fix errors in real time as you type. Grammar and spelling checks are free. |
| 🎒 When you want to rephrase your writing | QuillBot | Rewrites sentences using modes like Formal or Shorten. Includes free summarizer and citation generator tools. |
| 👥 For writing research papers and assignments | Grammarly | Plagiarism checking and tone adjustments are in paid plans. Many schools also provide institutional licenses. |
Not a ranking. Different situations, different answers.
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Prices may change; confirm on each official site before paying. A comparison's verified date is the oldest of the comparison and its tools.