Is QuillBot owned by Grammarly?

No. QuillBot is owned by Learneo (formerly Course Hero).

QuillBot Premium is cheaper on annual billing as of October 2026.

Yes; many users paraphrase in QuillBot and polish in Grammarly.

Do they have affiliate programs?

Yes: Grammarly pays $20 per Pro purchase and QuillBot pays up to 20%, capped at $20 per subscriber.

Compare

Grammarly vs QuillBot

Grammarly vs QuillBot: editorial comparison with pricing, features, and buying guidance.

Grammarly

Writing assistant for clarity and tone

#14 · 89.2

Visit Grammarly

QuillBot

Paraphrasing and summarization for students

#42 · 80.3

Visit QuillBot

Grammarly is the leading writing assistant for grammar, clarity and tone across browsers, email and documents, with AI drafting built in; its parent company rebranded as Superhuman in 2025. QuillBot is best known for paraphrasing and summarising, and its Premium plan is cheaper. Choose Grammarly for polishing professional writing everywhere you type. Choose QuillBot for rewriting, paraphrasing and summarising on a budget, especially for students.

grammarly: Parent company renamed Superhuman (2025)

Who should pick Grammarly

Professionals and teams who write email, documents and messages all day and want consistent, polished writing.

Pros

Works almost everywhere you type
Excellent tone and clarity suggestions
Team features

Cons

Monthly billing is expensive
Some features overlap with built-in AI

Who should pick QuillBot

Students, researchers and non-native English writers who need paraphrasing, summaries and citation tools at low cost.

Pros

Low annual price
Strong paraphraser and summariser
Good for academic work

Cons

Less comprehensive grammar coverage
Paraphrasing must respect academic integrity rules

Feature comparison

Grammar and style: both check grammar; Grammarly is more comprehensive on tone and clarity.
Paraphrasing: QuillBot's core feature, with multiple modes.
Coverage: Grammarly works across browsers, desktop apps and mobile keyboards.
AI detection and plagiarism: both offer related tools on paid plans.

Pricing snapshot

As of October 2026: Grammarly Pro is $12/member/month billed annually ($144/year), or $30 monthly. QuillBot Premium is $99.95/year (about $8.33/month), $13.31/month semi-annually or $19.95 monthly.

Pricing notes as of 2026-10-18.

How to choose

Choose Grammarly if you write in many apps and want suggestions everywhere.
Choose QuillBot for paraphrasing and summarising research material.
Students should check institutional rules on paraphrasing tools.
For the lowest annual cost, QuillBot Premium wins.
Teams needing style guides and admin controls should look at Grammarly's business plans.
Both offer free tiers to test.

FAQ

Is QuillBot owned by Grammarly?: No. QuillBot is owned by Learneo (formerly Course Hero).
Which is cheaper?: QuillBot Premium is cheaper on annual billing as of October 2026.
Can I use both?: Yes; many users paraphrase in QuillBot and polish in Grammarly.
Do they have affiliate programs?: Yes: Grammarly pays $20 per Pro purchase and QuillBot pays up to 20%, capped at $20 per subscriber.

Editorial comparison based on vendor documentation and public sources; not based on hands-on benchmark testing. Prices change frequently - verify on vendor sites. Some links may be affiliate links.

Spec	Grammarly	QuillBot
Score	89.2 · lead	80.3
Overall rank	#14 · lead	#42
Pricing	Freemium	Freemium
Starting price	$12	$10 · lead
Free tier	Yes	Yes
Editor score	4.5 · lead	4.3
Platforms	Web, macOS, Windows, iOS, Android	Web, iOS, Android
Launched	Jan 1, 2009 · lead	Jan 1, 2017

Primary category for this matchup: Writing & Content. Individual profiles: Grammarly · QuillBot.