Grammarly vs QuillBot (2026): Prices, Features and Which to Choose
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Grammarly vs QuillBot comes down to one question: do you need help fixing what you wrote, or help rewording it? Grammarly is a writing assistant that checks grammar, clarity and tone while you type. QuillBot is a paraphrasing tool: it rewrites a sentence or paragraph in different words, and adds a grammar checker and summarizer around that.
The short answer
Choose Grammarly to catch mistakes and fix tone everywhere you write. Pro costs $12/mo billed yearly or $30 monthly.
Choose QuillBot to reword, summarize and check plagiarism for less. Premium costs $8.33/mo billed yearly or $19.95 monthly in the US.
Grammarly vs QuillBot at a glance
 Grammarly |  QuillBot | |
|---|---|---|
| What it is at heart | A grammar, clarity and tone checker that works where you type | A paraphraser with a grammar checker, summarizer and other writing tools around it |
| Free plan | Yes: grammar and spelling checks, tone detection, 100 AI prompts a month | Yes: paraphraser up to 100 words at a time in 2 modes, summarizer up to 1,200 words, basic grammar fixes |
| Paid plan, billed yearly | Pro: $12/mo ($144 a year) | Premium: $8.33/mo ($99.95 a year) |
| Paid plan, billed monthly | Pro: $30/mo | Premium: $19.95/mo |
| Every 3 months | $60 | $39.95 |
| Free trial of the paid plan | Yes, on Pro | None listed |
| Paraphrasing | Full-sentence and paragraph rewrites on Pro, plus a Paraphraser agent | 9 built-in modes plus custom modes on Premium; Standard and Fluency on Free |
| Plagiarism checker | Pro only | Premium: up to 25,000 words a month |
| AI-text detection | Pro only | Limited on Free, full on Premium |
| AI prompts / generation | 100 a month free, 2,000 a month per member on Pro | Not listed on the Premium page; it lists an AI humanizer instead (100 words free) |
| Where it works | 1 million+ apps and sites: browsers, Windows and Mac, Android and iOS, Google Docs, Word, Gmail, Outlook, Slack | Chrome, Edge and Safari, Microsoft Word, Windows and macOS apps, iOS and Android |
| Teams | Pro up to 149 seats; Enterprise has no public price | Team plan has no public price (5+ users) |
From each vendor’s plans, pricing, FAQ and feature pages, checked October 16, 2026. US prices before tax.
Grammarly vs QuillBot pricing
QuillBot is the cheaper of the two on every billing period. Both sell their paid plan monthly, every 3 months or yearly, and both charge far less per month if you pay for a year up front.
| 12 months of the paid plan | Grammarly Pro | QuillBot Premium |
|---|---|---|
| Paid yearly | $144 | $99.95 |
| Paid every 3 months (×4) | $240 | $159.80 |
| Paid monthly (×12) | $360 | $239.40 |
A note on regional pricing. QuillBot shows lower prices in some countries, so the number on your screen may differ from ours. Grammarly says it shows local prices in euros, pounds and rupees at checkout. We list US prices so every page on this site compares like with like.
Grammarly offers a free trial of Pro, and its plans page says it emails you 2 days before the trial ends. We didn’t find a free trial of QuillBot Premium, but QuillBot’s free plan has no time limit.
Grammar and clarity checks
This is Grammarly’s core job. Its free plan catches spelling, grammar and punctuation mistakes and shows how your tone comes across. Pro adds full-sentence rewrites you accept with a click and suggestions to make your tone more formal or friendly.
QuillBot’s grammar checker gives basic fixes on the free plan. Premium adds advanced suggestions and tone insights. It works well as a check on text you just paraphrased, but grammar is a supporting feature in QuillBot rather than the main product.
Who wins: Grammarly, if proofreading is the main reason you are paying.
Paraphrasing and rewriting
Paraphrasing means saying the same thing in different words. It is QuillBot’s core job. The free plan rewrites up to 100 words at a time in 2 modes, Standard and Fluency. Premium removes the word limit and gives you 9 built-in modes, such as Formal, Academic and Creative, plus your own custom modes.
Grammarly also rewrites text. Pro rewrites whole sentences and paragraphs, and Grammarly now lists a Paraphraser agent that adjusts writing to sound more creative or professional. Its rewrites are tied to its suggestions as you edit, while QuillBot gives you a dedicated box with modes to switch between.
Who wins: QuillBot, if rewording text is the main job.
Plagiarism, AI detection and summaries
- Plagiarism checks: both need a paid plan. QuillBot Premium checks up to 25,000 words a month. Grammarly Pro includes plagiarism detection; its plans page doesn’t give a word limit.
- AI-text detection: Grammarly Pro detects AI-generated text. QuillBot’s AI detector is limited on Free and fully available on Premium.
- Summaries: QuillBot has a summarizer (1,200 words free, 6,000 on Premium). Grammarly’s plans page doesn’t list one.
- AI drafting: Grammarly includes AI prompts to draft and outline text, 100 a month free and 2,000 on Pro. QuillBot’s Premium page doesn’t list AI prompts; it lists an AI humanizer that rewrites AI-sounding text, 100 words at a time on Free.
We haven’t tested how accurate either tool’s AI detector is. No AI detector is perfect, so don’t treat a single score as proof that someone used AI.
Where each one works
Grammarly says it works in more than 1 million apps and websites. That includes browser extensions for Chrome, Firefox, Edge and Safari, Windows and Mac apps, Android, iPhone and iPad apps, and Google Docs, Microsoft Word, Gmail, Outlook and Slack. It supports more than 20 languages.
QuillBot works in Chrome, Edge and Safari, Microsoft Word, Windows and macOS apps, and iOS and Android. Its paraphraser handles 20+ languages. If you mostly write inside one web editor, either will reach it; if you write across many apps all day, Grammarly covers more of them.
Does it make sense to use both?
Yes. The two jobs fit together: reword a clumsy passage in QuillBot, then let Grammarly check the final text as you edit. You don’t have to pay for both to try this. Start with both free plans, and only upgrade the one you hit limits on first.
If you do pay for both yearly at US prices, it costs $243.95 a year ($144 + $99.95). That is less than Grammarly Pro alone billed monthly for a year ($360).
Who should pick which
Grammarly
Who it’s for: bloggers, business owners and anyone who writes emails, docs and posts across many apps and wants mistakes caught as they type. Also anyone who wants AI drafting help in the same tool.
Skip it if: you mainly need to reword or summarize text, or you won’t pay $144 up front and find $30 a month too much.
QuillBot
Who it’s for: students, researchers and writers who rework existing text, write in a second language, or need summaries and plagiarism checks on a budget.
Skip it if: you want a proofreader that follows you into Gmail, Slack and every other app, or you want AI prompts to draft new text inside the same tool.
| If you are… | Pick | Why |
|---|---|---|
| A blogger polishing posts | Grammarly | Grammar, clarity and tone checks wherever you draft |
| A student rewriting and summarizing sources | QuillBot | Paraphraser, summarizer and plagiarism checks for $8.33/mo yearly |
| A non-native English writer | Start with both free plans | QuillBot helps you find other ways to say it; Grammarly catches errors |
| A small team | Grammarly Pro | Public per-seat pricing up to 149 seats; QuillBot Team has no public price |
| Someone who wants AI to write full drafts | An AI writer such as Jasper or Writesonic | Both tools here are editors first, not article writers |
How we compared them
We read each vendor’s plans, pricing, FAQ and feature pages on October 16, 2026 and used US prices. We haven’t tested Grammarly or QuillBot hands-on yet, so we can’t rank the quality of their suggestions or rewrites. The free plans are the easiest way to judge that for yourself: paste the same paragraph into both and see which result you would keep.
Other tools to consider
See how these two sit next to AI writers in our guide to the best AI writing tools, or browse every AI writing tool we track.
FAQ
Is QuillBot better than Grammarly?
They are better at different jobs. QuillBot is built around rewording text you already have, with 9 paraphrasing modes on Premium. Grammarly is built around catching mistakes and fixing tone as you type in other apps. For proofreading, start with Grammarly; for rewording, start with QuillBot.
Is QuillBot cheaper than Grammarly?
Yes, in the US. On October 16, 2026, QuillBot Premium cost $8.33/mo billed yearly ($99.95) or $19.95 month to month. Grammarly Pro cost $12/mo billed yearly ($144) or $30 month to month. QuillBot also uses regional pricing, so it can cost less in some countries.
Can I use Grammarly and QuillBot together?
Yes. A simple split is to reword a passage in QuillBot, then let Grammarly check the result as you edit. Both have free plans, so you can try the pair before paying. Paying for both yearly costs $243.95 a year at US prices.
Which is better for students?
It depends on the task. QuillBot Premium is cheaper and adds a summarizer and plagiarism checks of up to 25,000 words a month. Grammarly Pro is stronger as an everyday proofreader and also checks plagiarism. Always follow your school’s rules on paraphrasing and AI tools.
Is the free version of Grammarly or QuillBot enough?
For light use, often yes. Grammarly Free fixes grammar and spelling everywhere you type. QuillBot Free paraphrases 100 words at a time in 2 modes. Plagiarism checks and full-sentence rewrites need a paid plan on both, and QuillBot limits its free AI detector.
Sources
All pages checked October 16, 2026.