Grammarly
Free / Pro ~$12 per mo (billed annually)
QuillBot
Free / Premium ~$10 per mo (less annually)
Grammarly is the all-around writing assistant: grammar, clarity, tone, and AI drafting that works almost everywhere you type. QuillBot is paraphrasing-first, strong at rewriting and summarizing, and cheaper. Grammarly wins on breadth; QuillBot wins on rewriting and price.
Pick Grammarly if you want an all-around writing assistant that checks grammar, tone, and clarity everywhere you type, plus AI drafting.
Pick QuillBot if your main need is paraphrasing, rewriting, and summarizing, especially for study, and you want a lower price.
Grammarly and QuillBot are both popular writing tools, but they lead with different strengths. Grammarly is a comprehensive writing assistant: it checks grammar and spelling, improves clarity and tone, and offers AI drafting, and it works across browsers, Word, email, and most apps. QuillBot started as a paraphrasing tool and remains best known for rewriting and summarizing, with grammar checking and a citation generator added on.
On price, both have free tiers and similar paid plans: Grammarly Pro is around $12 a month billed annually, and QuillBot Premium is around $10 a month, cheaper if paid annually. The decision is mostly about whether you want broad, everywhere writing help or a paraphrasing-first toolkit.
We compare grammar, paraphrasing, AI features, where each works, and price.
| Quick facts | Grammarly | QuillBot |
|---|---|---|
| Main strength | All-round writing help | Paraphrasing & rewriting |
| Paid price | Pro ~$12/mo (annual) | Premium ~$10/mo |
| Works everywhere you type | Yes | Limited |
| Paraphrasing modes | Basic | Best-in-class |
| Best for | General writing | Rewriting + students |
Each row reflects the feature on each product's current public release.
| Feature | G Grammarly | Q QuillBot |
|---|---|---|
| Grammar & spelling | Best-in-class | Good |
| Clarity & tone suggestions | Yes | Limited |
| Paraphrasing / rewriting | Basic | Best-in-class |
| Summarizing | Limited | Yes |
| AI drafting | Yes | Some |
| Works across apps & browser | Broad | Limited |
| Citation generator | Limited | Yes |
| Lower price | No | Yes |
Pricing and features change often. Always verify the current details on each product's official site. Last reviewed June 2026.
Things neither product's marketing page leads with.
Grammarly does more and works almost everywhere, but its paraphrasing is weaker than QuillBot's and it costs a bit more.
QuillBot is excellent at rewriting and cheaper, but it is less of an everywhere-you-type assistant.
Heavy writers sometimes use both: Grammarly for live checking and QuillBot for rephrasing passages.
The average person juggles a dozen subscriptions and forgets at least one. Subkept is a privacy-first subscription tracker: add Grammarly, QuillBot, and everything else, then get renewal reminders, price-hike alerts, and a clear monthly total, with no bank connection, ever. Free for up to 5 subscriptions, no time limit.
See how the price has moved