Grammarly vs QuillBot

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Data last refreshed October 2026

Grammarly

Free AI Writing Assistance

Freemium

81% verification coverage

QuillBot

Learneo, Inc.

Your complete writing solution — paraphrase, grammar, and more

Freemium

75% verification coverage

Trust & Reliability

Grammarly

Users:10M-50M

Customers (per vendor):Databricks, Indeed, Zoom +4

GDPR

SOC 2

HIPAA

QuillBot

Users:10M-50M

GDPR

Overall Winner: Grammarly

6.8/10 vs QuillBot at 5.0/10

Leads in:

Compliance & Data Protection

Customization

Integration

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

AI Comparison Summary

Grammarly

6.8

avg score

QuillBot

5.0

avg score

Grammarly leads overall — particularly in Customization and Integration and 1 more.

QuillBot has an edge in Ease of Use.

Based on 6 dimensions

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Overall Winner

Grammarly

6.8 / 10

Grammarly

Best For

Individuals seeking mistake-free writing

Teams and businesses aiming for consistent, on-brand communication

Students and institutions needing writing assistance and plagiarism checks

Marketing teams creating clear and convincing content

QuillBot

Best For

Business owners communicating with multiple clients and increasing content publishing

Job seekers creating contextual resumes and cover letters

Professionals perfecting briefs, pitches, and reports

Students and academics improving writing, visuals, and presentations

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Grammarly is best for

🤖Automation & Agents5.5🔍Research5.5✍️Writing & Content5.3

QuillBot is best for

✍️Writing & Content6.0💻Coding & Dev5.0🔍Research5.0

Filter by your use case:

Limitations

Grammarly

Cons

Enterprise features like SSO and data loss prevention are only available on the highest tier
Advanced AI prompts are limited on the Free and Pro plans
Requires explicit permission to record typed or copied input for some features
Grammarly cannot access sensitive fields like passwords and payment information on a best-efforts basis

QuillBot

Cons

Free plan is limited to 125 words for paraphrasing
Free plan offers basic grammar error correction only
Free plan allows basic mode for text humanization
Free plan AI Detector is limited to 1,200 words
Team Plan requires contacting sales for volume/bulk discounts

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Customization5

Support5

Integration5

Compliance & Data Protection5

Performance5

Planning Quality5

Dimension Comparison

Grammarly

6.8

/ 10

Clear winner

QuillBot

5.0

/ 10

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Grammarly

8.0

QuillBot

10.0▲ +2.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Grammarly

6.0▲ +4.0

QuillBot

2.0

Support

How strong is the documentation, customer support, community, and learning resources?

Grammarly

6.0

QuillBot

6.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Grammarly

6.0▲ +5.0

QuillBot

1.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, counted from ten verified signals: SOC 2 Type II, GDPR compliance, HIPAA, WCAG AA/AAA, PII redaction, licensed-only training, a published sub-processor list, a downloadable DPA, not training on user data, and a documented deletion path

Grammarly

7.0▲ +4.0

QuillBot

3.0

Performance

Calculated

Latency + throughput speed

Grammarly

8.0

QuillBot

8.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Grammarly

—

QuillBot

—

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Grammarly

Task

QuillBot

4.0

Blog Writing

5.0

4.0

Article Generation

5.0

2.0

Seo Optimization

4.0

5.0

Content Research

5.0

4.0

Headline Creation

5.0

6.0

Content Repurposing

8.0

9.0

Tone Adaptation

8.0

4.0

Multi Format Output

6.0

7.0

Collaboration Workflow

5.0

Template Library

7.0

6.0

Text Summarization

8.0

7.0

Language Translation

8.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

What are the main differences between Grammarly and QuillBot?

Grammarly — "Free AI Writing Assistance". QuillBot — "Your complete writing solution — paraphrase, grammar, and more". The Features section on this page compares them side by side.

Who is Grammarly best for compared with QuillBot?

Grammarly is best for Individuals seeking mistake-free writing; and for Teams and businesses aiming for consistent, on-brand communication. QuillBot is best for Business owners communicating with multiple clients and increasing content publishing; and for Job seekers creating contextual resumes and cover letters.

How does the pricing of Grammarly compare with QuillBot?

Grammarly is freemium, includes a free plan, offers a free trial. QuillBot is freemium, includes a free plan. Always verify current pricing with the vendor.

Does Grammarly or QuillBot have a free plan?

Grammarly has a free plan and offers a free trial. QuillBot has a free plan. Always verify current pricing with the vendor.

Explore Alternatives

Grammarly Alternatives

Tools similar to Grammarly

QuillBot Alternatives

Tools similar to QuillBot

Compare More AI Tools

Use our comparison tool to compare up to 5 AI tools side-by-side with AI-powered recommendations.