Grammarly vs QuillBot: A Detailed Comparison of Writing Tools
Grammarly and QuillBot overlap in AI-assisted writing, but their plans and core workflows differ. Grammarly Pro centers on a broader writing assistant; QuillBot Premium is commonly selected for rewriting and paraphrasing workflows.
Quick answer
- •Choose Grammarly Pro if its broader writing-assistance workflow and integrations are the priority.
- •Choose QuillBot Premium if paraphrasing and rewriting are the central tasks and the lower annual price matters.
- •Do not buy both automatically; test the free versions against your own documents first.
This recommendation is Subpilot editorial analysis. Feature availability and limits should be rechecked on each current plan page.
Current US price comparison
| Product | Monthly billing | Quarterly billing | Annual billing | Effective annual monthly rate |
|---|---|---|---|---|
| Grammarly Pro | $30/month | $60 every 3 months | $144/year | $12/month |
| QuillBot Premium | $19.95/month | $39.95 every 3 months | $99.95/year | About $8.33/month |
Grammarly’s official help center lists the current Pro prices and explains that Grammarly Pro replaced the former Premium and Business plans. The source is linked once below.
QuillBot’s official pricing explanation lists $19.95 monthly, $39.95 every three months, and $99.95 annually. The source is linked once below.
Correct annual-cost examples
- •Grammarly Pro annual plus QuillBot Premium annual: $243.95 per year.
- •Paying Grammarly Pro monthly for 12 months: $360.
- •Paying QuillBot Premium monthly for 12 months: $239.40.
These totals use standard listed prices and exclude taxes, promotions, education offers, and future changes. The previous $204 combined example was removed because it used obsolete prices.
Workflow differences to test
Grammarly Pro
Test grammar feedback, tone and style assistance, rewriting, and the integrations available in your normal browser, desktop, and document workflow. Confirm current generative-AI limits and team controls on Grammarly’s official plan pages.
QuillBot Premium
Test paraphrasing modes, rewriting controls, grammar tools, and any citation or summarization features you need. Confirm current character limits and included tools on QuillBot’s official plan page.
Which one fits you?
Grammarly Pro is the stronger fit when
- •You want assistance throughout a broader writing workflow.
- •The current integrations work in the apps where you write.
- •The annual Pro features justify $144 for your use case.
QuillBot Premium is the stronger fit when
- •Paraphrasing and controlled rewriting are the primary tasks.
- •The $99.95 annual plan covers the features and limits you need.
Before subscribing
- 1Run the same three writing samples through both free products.
- 2Check whether the required feature is limited to a paid plan.
- 3Confirm privacy and data-handling requirements for workplace or student documents.
- 4Compare annual totals only after validating tool quality on your own text.
Official sources
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